Genesis 17:19
Then said God, "Nay. Sara thy wife shall bear thee a son, and thou shalt call his name Isaac. And I will make my covenant with him, that it shall be an everlasting covenant unto his seed after him.
Genesis 21:2-3
And Sara was with child and bare Abraham a son in his old age, even the same season which the LORD had appointed.
Genesis 17:21
But my covenant will I make with Isaac, which Sara shall bear unto thee: even this time, twelve month."
Genesis 18:10-14
And he said, "I will come again unto thee as soon as the fruit can live. And lo, Sara thy wife shall have a son." That heard Sara, out of the tent door which was behind his back.
Genesis 21:6
And Sara said, "God hath made me a laughingstock: for all that hear, will laugh at me."
Genesis 26:3
Sojourn 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 countries. And I will perform the oath which I swore unto Abraham thy father,
2 Kings 4:16-17
Then he said, "By such a time, as soon as the fruit can live, thou shalt embrace a son." And she said, "Oh nay, my lord, thou man of God, do not lie unto the handmaid."
Luke 1:13-20
And the angel said unto him, "Fear not Zacharias, for thy prayer is heard: And thy wife Elizabeth shall bear thee a son, and thou shalt call his name John:
Romans 9:6-9
I speak not these things as though the words of God had taken none effect. For they are not all Israelites which came of Israel;
Galatians 4:28-31
Brethren, we are, after the manner of Isaac, children of promise: