Romans 4
Abraham becomes the prototype of justification by faith: his faith was reckoned to him as righteousness, and this occurred before his circumcision, making him father of all who believe, whether circumcised or not. Paul draws upon the Old Testament itself—Genesis 15:6 for Abraham's faith, and Psalm 32 for David's pronouncement of blessing upon the man whose iniquities are forgiven and whose sins are covered, a blessing bestowed not through works but through divine reckoning. The promise to Abraham and his seed came through the righteousness of faith, not through the law; indeed, if inheritance comes by the law, faith is nullified and the promise voided—grace and law are presented as mutually exclusive soteriological instruments. Abraham's faith is exemplified in his bodily deadness and Sarah's barrenness—circumstances against hope where hope nonetheless believed, against hope he trusted, glorifying God by acknowledging God's power to do the impossible and God's faithfulness to the promise. He did not waver in unbelief but gave glory to God and was fully convinced that what God had promised, God was able to perform—this trust was credited to him as righteousness, and Paul insists this accounting is written not for Abraham alone but also for us who believe in the God who raised Jesus our Lord, who was handed over to death for our trespasses and raised for our justification.
Romans 4:25
He was delivered over to death for our sins and was raised to life for our justification. Christ's death and resurrection together accomplish justification. Death addresses sin; resurrection accomplishes justification. The passive voice emphasizes God's agency. Christ's resurrection is not merely personal vindication but the ground of our justification.
Romans 4:3
What does Scripture say? 'Abraham believed God, and it was credited to him as righteousness.' The quotation from Genesis 15:6 becomes the foundational text for Paul's doctrine of justification by faith. Believed (pisteuō) and it was credited (logizomai) establish the mechanism: Abraham's trust in God's promise was reckoned as righteousness. His faith was the instrument through which righteousness was imputed.
Romans 4:4
Now to the one who works, wages are not credited as a gift, but as an obligation. The logic of works versus grace: when labor is performed, compensation is due as obligation, not generosity. The wages are earned; there is no grace element. This establishes a principle: works-based systems operate on the principle of merit and debt.
Romans 4:5
However, to the one who does not work but trusts God who justifies the ungodly, their faith is credited as righteousness. The dramatic reversal: trusting God rather than trusting one's own works becomes the basis of justification. God justifies the ungodly—not the righteous, but sinners. Faith is the vehicle; righteousness is the result. Abraham's trust in God despite his ungodliness becomes the model.