Genesis 17:19
And Elohim said, Sarah your wife shall bear you a son indeed; and you shall call his name Isaac: and I will establish my covenant with him for an everlasting covenant, with his seed after him.
ā The Restored Word Bible
Context
17 Then Abraham fell upon his face, and laughed, and said in his heart, Shall be born unto him that is an hundred years old? and shall Sarah, that is ninety years old, bear?
18 And Abraham said unto Elohim, O that Ishmael might live before you!
19 And Elohim said, Sarah your wife shall bear you a son indeed; and you shall call his name Isaac: and I will establish my covenant with him for an everlasting covenant, with his seed after him.
20 And as for Ishmael, I have heard you: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation.
21 But my covenant will I establish with Isaac, which Sarah shall bear unto you at this set time in the next year.