Genesis 21:6

21:6 Sarah said, “God has made me laugh. Everyone who hears about this will laugh with me.”

Genesis 21:12

21:12 But God said to Abraham, “Do not be upset about the boy or your slave wife. Do all that Sarah is telling you because through Isaac your descendants will be counted.

Genesis 17:19

17:19 God said, “No, Sarah your wife is going to bear you a son, and you will name him Isaac. I will confirm my covenant with him as a perpetual covenant for his descendants after him.

Genesis 22:2

22:2 God said, “Take your son – your only son, whom you love, Isaac – and go to the land of Moriah! Offer him up there as a burnt offering on one of the mountains which I will indicate to you.”

Joshua 24:3

24:3 but I took your father Abraham from beyond the Euphrates and brought him into the entire land of Canaan. I made his descendants numerous; I gave him Isaac,

Matthew 1:2

1:2 Abraham was the father of Isaac, Isaac the father of Jacob, Jacob the father of Judah and his brothers,

Acts 7:8

7:8 Then God gave Abraham the covenant of circumcision, and so he became the father of Isaac and circumcised him when he was eight days old, and Isaac became the father of Jacob, and Jacob of the twelve patriarchs.

Romans 9:7

9:7 nor are all the children Abraham’s true descendants; rather “through Isaac will your descendants be counted.”

Hebrews 11:18

11:18 God had told him, “Through Isaac descendants will carry on your name,”