Genesis 18:9-19

They asked him, “Where is your wife Sarah?” He answered, “Over there—in the tent.” Then one spoke up and said, “I will return about this time next year, when your wife Sarah will certainly have a son.” Sarah overheard it, for she was at the tent door not far behind him. Now, both Abraham and Sarah were already very old, and Sarah was past the age of childbearing. Sarah laughed to herself with disbelief, saying, “A woman my age—have a baby? After I’m worn out will I now enjoy marital bliss and conceive—and with my aged husband?” YAHWEH knew her thoughts and asked Abraham, “Why is Sarah laughing, saying, ‘How can a woman my age have a baby?’ Do you think there is anything too marvelous for YAHWEH? I will appear to you at the appointed time next year and Sarah will have a son!” Sarah was afraid, so she denied it, saying, “I wasn’t laughing.” But he said, “Yes, you were!” Afterward, the three men departed and walked toward Sodom, and Abraham went off with them to see them on their way. As they walked, YAHWEH said, “Should I really hide from Abraham what I intend to do? After all, he will become a great and powerful nation, and every nation on earth will seek bliss like his. It is true; I have singled him out as my own, so that he will lead his family and household to follow my ways and live by what is right and just. I will fulfill all the promises that I have spoken to him.”