Jehovah fulfilled His promise by giving Abraham and Sarah Isaac, the covenant son, at the appointed time.
The Child of Promise: Jehovah’s Faithfulness in the Birth of Isaac (Genesis 21:1–7)
Birth of Isaac and Departure of Hagar and Ishmael (Genesis 21:1–21)
Ishmael’s mocking of Isaac was persecution against the covenant heir, leading to his expulsion and the preservation of God’s redemptive plan.
