Genesis 17:19
And God said, Sarah thy wife shall bear thee a son indeed, and thou shalt call his name Isaac (laughter); and I will confirm my covenant with him for an everlasting covenant and with his seed after him.
Genesis 21:2-3
For Sarah conceived and bore Abraham a son in his old age at the set time of which God had spoken to him.
Genesis 17:21
But I will establish my covenant with Isaac, whom Sarah shall bear unto thee at this set time in the next year.
Genesis 18:10-14
Then he said, I will certainly return unto thee according to the time of life; and, behold, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.
Genesis 21:6
Then Sarah said, God has made me to laugh so that all that hear will laugh with me.
Genesis 26:3
abide in this land, and I will be with thee, and will bless thee; for unto thee, and unto thy seed, I will give all these lands, and I will confirm the oath which I swore unto Abraham thy father;
2 Kings 4:16-17
And he said, At the appointed time, according to the time of life, thou shalt embrace a son. And she said, No, my lord, thou man of God, do not deceive thy handmaid.
Luke 1:13-20
But the angel said unto him, Fear not, Zacharias, for thy prayer is heard; and thy wife Elisabeth shall bear thee a son, and thou shalt call his name John.
Romans 9:6-9
Not as though the word of God has been deficient. For not all the descendants of Israel are Israelites;
Galatians 4:28-31
So that we, brethren, as Isaac was, are the children of promise.