Isaac

Isaac is the son of Abraham and Sarah — the child of the divine promise, born miraculously when Abraham was one hundred years old and Sarah was ninety. He is the second patriarch of Israel and a profound type of Christ (CCC 145, 706).

The Child of Promise

God had promised Abraham a son through whom all nations would be blessed (Genesis 12:1–3). When this seemed humanly impossible, God reiterated his promise: "Is anything too hard for the Lord?" (Genesis 18:14). Isaac's birth — from a barren womb and parents of extreme old age — was entirely a work of divine grace, not human possibility. His very name means "laughter" — the astonished joy of his parents at the impossible promise fulfilled.

The Sacrifice of Isaac

God tested Abraham's faith by commanding him to sacrifice Isaac on Mount Moriah (Genesis 22). Abraham obeyed, trusting that God could raise Isaac from the dead (Hebrews 11:19). At the last moment, God provided a ram in Isaac's place. The Church sees this as a type of the Father offering his only Son on the cross — Isaac carrying the wood of his own sacrifice as Christ carried his cross (CCC 2572).

Isaac as Type of Christ

Isaac prefigures Christ in multiple ways: both are sons of a miraculous birth; both carry the wood of sacrifice; both are offered by their fathers; both are "saved" — Isaac by the ram, Christ by his own resurrection. The binding of Isaac (the Akedah) is one of the most theologically rich typological passages in all of Scripture (CCC 2572).

Frequently Asked Questions

Did Abraham actually intend to kill Isaac? Yes. The text of Genesis 22 and the Letter to the Hebrews (11:17–19) are both clear that Abraham fully intended to offer Isaac, trusting that God would somehow fulfill his promises. His obedience is held up as the supreme example of faith tested to its uttermost (CCC 2572).