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Genesis 21

1

And the Lord visited Sarah as he had said, and the Lord did unto Sarah as he had spoken.

2

For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.

3

And Abraham called the name of his son that was born unto him, whom Sarah bare to him, Isaac.

4

And Abraham circumcised his son Isaac being eight days old, as God had commanded him.

5

And Abraham was an hundred years old, when his son Isaac was born unto him.

6

And Sarah said, God hath made me to laugh, so that all that hear will laugh with me.

7

And she said, Who would have said unto Abraham, that Sarah should have given children suck? for I have born him a son in his old age.

8

And the child grew, and was weaned: and Abraham made a great feast the same day that Isaac was weaned.

9

And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.

10

Wherefore she said unto Abraham, Cast out this bondwoman and her son: for the son of this bondwoman shall not be heir with my son, even with Isaac.

11

And the thing was very grievous in Abraham’s sight because of his son.

12

And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy bondwoman; in all that Sarah hath said unto thee, hearken unto her voice; for in Isaac shall thy seed be called.

13

And also of the son of the bondwoman will I make a nation, because he is thy seed.

14

And Abraham rose up early in the morning, and took bread, and a bottle of water, and gave it unto Hagar, putting it on her shoulder, and the child, and sent her away: and she departed, and wandered in the wilderness of Beer–sheba.

15

And the water was spent in the bottle, and she cast the child under one of the shrubs.

16

And she went, and sat her down over against him a good way off, as it were a bowshot: for she said, Let me not see the death of the child. And she sat over against him, and lift up her voice, and wept.

17

And God heard the voice of the lad; and the angel of God called to Hagar out of heaven, and said unto her, What aileth thee, Hagar? fear not; for God hath heard the voice of the lad where he is.

18

Arise, lift up the lad, and hold him in thine hand; for I will make him a great nation.

19

And God opened her eyes, and she saw a well of water; and she went, and filled the bottle with water, and gave the lad drink.

20

And God was with the lad; and he grew, and dwelt in the wilderness, and became an archer.

21

And he dwelt in the wilderness of Paran: and his mother took him a wife out of the land of Egypt.

22

And it came to pass at that time, that Abimelech and Phichol the chief captain of his host spake unto Abraham, saying, God is with thee in all that thou doest:

23

Now therefore swear unto me here by God that thou wilt not deal falsely with me, nor with my son, nor with my son’s son: but according to the kindness that I have done unto thee, thou shalt do unto me, and to the land wherein thou hast sojourned.

24

And Abraham said, I will swear.

25

And Abraham reproved Abimelech because of a well of water, which Abimelech’s servants had violently taken away.

26

And Abimelech said, I wot not who hath done this thing: neither didst thou tell me, neither yet heard I of it, but to day.

27

And Abraham took sheep and oxen, and gave them unto Abimelech; and both of them made a covenant.

28

And Abraham set seven ewe lambs of the flock by themselves.

29

And Abimelech said unto Abraham, What mean these seven ewe lambs which thou hast set by themselves?

30

And he said, For these seven ewe lambs shalt thou take of my hand, that they may be a witness unto me, that I have digged this well.

31

Wherefore he called that place Beer–sheba; because there they sware both of them.

32

Thus they made a covenant at Beer–sheba: then Abimelech rose up, and Phichol the chief captain of his host, and they returned into the land of the Philistines.

33

And Abraham planted a grove in Beer–sheba, and called there on the name of the Lord, the everlasting God.

34

And Abraham sojourned in the Philistines’ land many days.

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Genesis 21

Genesis 21 opens with the words the whole story has been waiting for: the Lord visited Sarah as He had said, and she conceived and bore a son. Isaac is born — laughter fulfilled. The joy is real, and Abraham is one hundred years old. But the celebration is complicated almost immediately: Sarah sees Ishmael mocking Isaac and demands that Hagar and Ishmael be sent away. Abraham is distressed — this is his son — but God tells him to listen to Sarah, and He promises that Ishmael too will become a great nation. In the wilderness, when Hagar's water runs out and she cannot bear to watch her son die, God hears the boy's cry, opens Hagar's eyes to a well of water, and reaffirms His promise for Ishmael. The God of the covenant is also the God who sees and hears those on the margins. The chapter ends with a treaty between Abraham and Abimelech — a sign of Abraham's growing influence in the land. Galatians 4:28 sees Isaac as the pattern for those who are children of promise, born not of human striving but of God's word.

Genesis 21:6

Sarah says that God has brought her laughter and everyone who hears will laugh with her. The private laugh of disbelief in Genesis 18:12 has become the public laugh of fulfilled delight. Psalm 126:2 captures this: when the LORD restored the fortunes of Zion, our mouths were filled with laughter. The communal laughter of fulfilled promise is the biblical sound of redemption arriving. The application: what was doubted becomes the testimony. Sarah invites everyone to laugh with her.

Genesis 21:7

Sarah asks who would have said to Abraham that she would nurse children, yet she has borne him a son in his old age. The rhetorical question is the testimony: no one would have said this. Only God said it — and it happened. Luke 1:45 says blessed is she who has believed that the Lord would fulfill his promises. Sarah, who doubted, now testifies to the fulfillment. The application: the most powerful testimony is always the gap between what seemed possible and what God did.

Genesis 21:21

Ishmael lives in the Desert of Paran, and his mother gets a wife for him from Egypt. The Egyptian wife chosen by the Egyptian mother connects Ishmael's line back to Egypt, from which Hagar came. The completeness of the fulfillment — desert, archery, marriage — testifies that the promise to Hagar in Genesis 16 and 21 was real and was kept. The application: the promises God makes to peripheral figures in the story are as exactly kept as the promises he makes to central figures.

Genesis 21:30

Abraham answers: accept these seven lambs from my hand as a witness that I dug this well. The lambs function as a legal title deed — witnessed, transferred, accepted evidence of ownership. The practical resolution of the water dispute is embedded in the treaty ceremony. The application: covenant relationships address not only general goodwill but the specific practical matters that would otherwise become future conflicts.

Genesis 21:22

At that time Abimelech and his army commander Phicol come to Abraham and say that God is with him in everything he does. The recognition of Abimelech — who has experienced both God's protection of Abraham and God's discipline — is the testimony of an outside observer. Matthew 5:16 calls for letting your light shine before others so they may see your good works and glorify your Father. The application: the most compelling testimony to God's presence in your life is the external recognition by those who observe it.

Genesis 21:23

Abimelech asks Abraham to swear by God not to deal falsely with him or his children or descendants, reminding him of the kindness already shown. The request for a treaty reflects the political reality of Abraham's growing influence. Romans 13:7 calls for giving everyone what is owed. The application: living well in a community requires formal commitments, not just good intentions.

Genesis 21:24

Abraham says simply: I swear it. Matthew 5:37 calls for a simple yes or no. The unqualified oath is exactly that economy of words. The application: when an oath is called for, the simple, direct, unqualified taking of it is the mark of integrity.

Genesis 21:25

Abraham also complained to Abimelech about a well of water that Abimelech's servants had seized. Water rights in the ancient Near East were matters of survival and territorial claim. The seizure of the well is a threat to Abraham's household. The application: covenant relationships require the airing and resolution of specific grievances, not just general pledges of goodwill.

Genesis 21:26

Abimelech says he does not know who has done this, that Abraham did not tell him, and that he heard about it only today. The denial is accepted as genuine. The willingness of both parties to take each other's word within the framework of the treaty oath is the practical expression of covenant trust. The application: the trust created by an oath is the trust in which the other person's word becomes credible.

Genesis 21:27

Abraham brings sheep and cattle and gives them to Abimelech, and the two men make a treaty. The gift accompanying the treaty seals the agreement. The treaty at Beersheba gives Abraham recognized presence and claim in the region. Genesis 26 will record the renewal of this same treaty with Isaac. The application: the formal sealing of commitments is the difference between a conversation about values and an actual covenant.

Genesis 21:28

Abraham sets apart seven ewe lambs from the flock. The seven lambs become the specific marker of the well — a witnessed, tangible acknowledgment that Abraham dug it and it is his. Numbers 30:2 binds a person to what comes from their mouth; the oath and the seven lambs together constitute an unbreakable claim. The application: important agreements benefit from being specific, witnessed, and materially marked.

Genesis 21:1

The LORD is gracious to Sarah as he had said, and does for Sarah what he had promised. The verse grounds the birth of Isaac entirely in divine faithfulness — the LORD said, the LORD promised, the LORD did. After the decades of waiting, the two wife-sister episodes, the Hagar detour, and the circumcision covenant, the fulfillment arrives exactly as announced. Romans 4:21 declares that Abraham was fully persuaded that God had power to do what he promised. The application: the patience that faith requires is the patience of waiting for the God who said and the God who promised to act.

Genesis 21:2

Sarah becomes pregnant and bears a son to Abraham in his old age, at the very time God had said. The phrase at the very time is the narrator's theological emphasis — not approximately when, not eventually, but at the exact time specified in Genesis 17:21 and 18:10. Hebrews 10:23 declares that he who promised is faithful. The application: when God keeps a promise, he keeps it with the specificity of the promise. Hold what God has said with that same exactness.

Genesis 21:3

Abraham gives the name Isaac to the son Sarah bore him. The laugh of Genesis 17:17 and 18:12 — the laugh of incredulous impossibility — is now the name of the living fulfillment. The doubt-laugh becomes the name of the promise kept. Zephaniah 3:17 pictures God rejoicing over his people with singing. The application: when God fulfills the impossible promise, what most expressed your doubt becomes the name of the fulfillment.

Genesis 21:4

When his son Isaac is eight days old, Abraham circumcises him as God commanded. The obedience is immediate, precise, and complete — the exact timing given in Genesis 17:12 is followed exactly. James 2:22 observes that faith was made complete by what Abraham did. The application: covenant promises are accompanied by covenant obligations, and the covenant person fulfills the obligations precisely.

Genesis 21:29

Abimelech asks about the seven ewe lambs Abraham has set apart. The question opens the space for Abraham's explanation in the next verse. The deliberateness of the treaty ceremony — setting apart, questioning, answering, oath — ensures that no one can later claim ignorance of what was agreed. The application: important agreements benefit from the deliberateness of questions asked and answered explicitly.

Genesis 21:5

Abraham is a hundred years old when his son Isaac is born. Romans 4:19 says Abraham did not consider his own body now dead, yet he was about a hundred years old. The deadness of his body at one hundred is the backdrop against which the promise shines. 1 Corinthians 15:42 describes the resurrection body: sown in weakness, raised in power — the birth of Isaac from a hundred-year-old father is one of the Old Testament's most vivid anticipations of resurrection logic. The application: the thing God promises in the place where natural possibility has died shows most clearly that it came from him.

Genesis 21:8

The child grows and is weaned, and Abraham holds a great feast on the day Isaac is weaned. In the ancient Near East, weaning typically happened around age two or three. The feast celebrates covenant continuity: the child who carries the promise has survived and thrived. Revelation 19:9 describes the wedding supper of the Lamb as the culmination of all such celebrations. The application: marking covenant milestones with celebration is theological faithfulness. The feast says what God promised has been received and is worth celebrating.

Genesis 21:9

Sarah sees that the son of Hagar the Egyptian — whom she had borne to Abraham — is mocking. The Hebrew word for mocking is related to the name Isaac, suggesting Ishmael is inverting the joy that the name represents. Paul interprets this in Galatians 4:29 as persecution. The household conflict between the son of the slave and the son of the free woman is a theological drama enacted in a family tent. The application: the rivalry Paul develops in Galatians 4 is not abstract theology — it is the lived reality of two incompatible approaches to receiving God's provision.

Genesis 21:10

Sarah tells Abraham to get rid of the slave woman and her son, for her son will never share in the inheritance with Isaac. Paul cites this in Galatians 4:30 as the appropriate theological response: the slave woman's son, born through human effort, cannot share the inheritance with the son of promise, born through faith and divine action. The two cannot coexist as co-heirs because they represent incompatible approaches. The application: living by law and living by grace cannot be harmonized. The flesh-born son and the promise-born son represent irreconcilable orientations.

Genesis 21:11

The matter distresses Abraham greatly because it concerns his son. Ishmael is Abraham's son, raised for fourteen years, loved enough to be prayed for in Genesis 17:18. The tension in Abraham's heart between covenant obligation and paternal love is the tension between what God has said and what we naturally feel about those we love. Romans 9:1-3 captures this same tension in Paul. The application: covenant faithfulness sometimes requires honoring commitments that break your heart. Both the heartbreak and the faithfulness are real.

Genesis 21:12

God tells Abraham not to be distressed but to listen to Sarah, for it is through Isaac that his offspring will be reckoned. The divine endorsement of Sarah's demand confirms the covenant specificity: Isaac, not Ishmael. Romans 9:7-8 develops this — not all of Abraham's children are reckoned as his offspring; the children of the promise are counted as offspring. The application: God's covenant specificity does not eliminate his care for those outside the specific line, as the next verse makes clear.

Genesis 21:13

God adds that he will make the son of the slave into a nation also, because he is Abraham's offspring. The care for Ishmael is framed in terms of his connection to Abraham. God's provision for Ishmael is not a secondary consolation prize but a genuine promise of nationhood. The application: the God who is faithful to the covenant line is also the God who makes promises to those adjacent to it. His specific covenant does not exhaust his care.

Genesis 21:14

Early the next morning Abraham takes some food and a skin of water, gives them to Hagar with the boy, and sends her away. She goes off and wanders in the Desert of Beersheba. The provision Abraham gives is meager — food and a skin of water for a wilderness journey. The inadequacy of the human provision creates the space where God's provision becomes necessary and visible. The application: the combination of covenant obedience and insufficient human provision is often where God's supply becomes most evident.

Genesis 21:15

When the water in the skin is gone, Hagar puts the boy under one of the bushes. The water runs out before they reach safety. The inadequacy of Abraham's provision has been exhausted, and Ishmael is near death. Psalm 46:1 describes God as a very present help in trouble. The application: God's provision often comes after the skin is empty. The moment when human supply is exhausted is often when divine supply becomes most visible.

Genesis 21:16

Hagar goes off and sits down about a bowshot away, saying she cannot watch the boy die, and she weeps. The distance she puts between herself and the dying boy is the distance of a mother who cannot bear what is coming. Luke 7:13 records Jesus seeing the widow of Nain weeping over her son and having compassion. The application: God does not arrive after the weeping has been resolved. He arrives in the middle of it.

Genesis 21:17

God hears the boy crying, and the angel of God calls to Hagar from heaven asking what is the matter, assuring her that God has heard the boy crying as he lies there. The divine attention is to Ishmael — the name meaning God hears is receiving exactly what his name announced. Genesis 16:11 gave the name because God heard Hagar's misery; now God hears Ishmael's crying. The application: the name God gave in the wilderness is the testimony that covers every subsequent wilderness. What God said about your situation is the word that speaks most truthfully into its worst moments.

Genesis 21:18

God tells Hagar to lift the boy and take him by the hand, for he will make him into a great nation. The command follows the pattern throughout Scripture: act, because I will provide. Lift him up: the action. I will make him a great nation: the promise. Jeremiah 29:11 promises plans for welfare and not evil, a future and a hope — Hagar in the desert is receiving exactly that. The application: the command to act in despair is always accompanied by a promise. Act on the command and trust the promise.

Genesis 21:19

God opens Hagar's eyes and she sees a well of water. She fills the skin and gives the boy a drink. The well was there all along — the provision existed before the crisis reached its bottom. 2 Kings 6:17 records Elisha praying for his servant's eyes to be opened to see what was already present. The application: the well you need may already be where you are. The despair that says there is nothing here may be the blindness that prevents you from seeing what God has already placed in your location.

Genesis 21:20

God is with the boy as he grows up. He lives in the desert and becomes an archer. The summary of Ishmael's life — God is with him — is the summary of a life well-supplied by divine presence even outside the covenant line. The archery and desert life fulfill the prophecy of Genesis 16:12 exactly. The application: the presence of God is not restricted to the covenant community. His presence and care extend to those in the spaces outside the specific covenant line.

Genesis 21:31

So that place was called Beersheba, because the two men swore an oath there. Beersheba means well of oath or well of seven — both meanings are present in the name. The place is named after what happened there: a covenant was made, an oath was sworn, a well was established. Beersheba becomes one of the most significant geographical markers in the biblical story. The application: the places where covenants are made carry forward significance. Name the places where significant commitments have been made in your own life.

Genesis 21:32

After the treaty had been made at Beersheba, Abimelech and Phicol returned to the land of the Philistines. The formal departure marks the completion of the treaty ceremony. What started with a lie in Genesis 20 ends with a treaty; what started in shame ends with mutual recognition of God's presence. The application: grace restores not only the relationship that was damaged but can build something more durable than what existed before.

Genesis 21:33

Abraham plants a tamarisk tree in Beersheba and calls on the name of the LORD, the Eternal God. El Olam — Eternal God — appears here for the first time in Scripture. The planting of a tree is an act of permanence: you plant for the shade and fruit of future generations, not only for yourself. The application: whatever you plant for the future — relationships, institutions, commitments — call on El Olam over it. The eternal God is the only adequate witness for things meant to outlast you.

Genesis 21:34

And Abraham stayed in the land of the Philistines for a long time. The settled presence — a long time — is the covenant person putting down roots in the promised land: building relationships, planting trees, making treaties. Acts 17:26 declares that God determined the appointed times and boundaries of all peoples. The application: the long time of settled faithfulness in one place — without dramatic movement — is often the most significant phase of a covenant life.