Ephesians
Ephesians reads less like a letter answering a crisis and more like a soaring meditation on God's eternal plan. Its opening chapter is a single long sentence in Greek, a cascade of blessing: chosen, adopted, redeemed, sealed with the Spirit. At its center stands the church, one new humanity in which the dividing wall between Jew and Gentile has been broken down, a body, a temple, a bride. The second half turns doctrine into walking: worthy of the calling, in love, in light, in wisdom. It closes with the whole armor of God for a struggle not against flesh and blood.
The apostle Paul, writing from prison; some scholars debate authorship
AD 60–62, or later by some estimates
Believers in Ephesus and likely churches throughout Asia Minor
To unfold God's plan to unite all things in Christ and to call the church to live worthy of that calling.