Genesis 17:16-19

16I will bless her, and moreover, I will agive
Hebrew have given
you a son by her. I will bless her, and cshe shall become nations; kings of peoples shall come from her.”
17Then Abraham dfell on his face eand laughed and said to himself, “Shall a child be born to a man who is a hundred years old? Shall Sarah, who is ninety years old, bear a child?” 18And Abraham said to God, “Oh that Ishmael might live before you!” 19God said, “No, but fSarah your wife shall bear you a son, and you shall call his name gIsaac.
 Isaac means he laughs
I will establish my covenant with him as an everlasting covenant for his offspring after him.
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