Then they said to him, “Where is Sarah your wife?” And he said, “There, in the tent.” He said, “I will surely return to you at this time next year; and behold, Sarah your wife will have a son.” And Sarah was listening at the tent door, which was behind him. [Rom 9:9-12] Now Abraham and Sarah were old, well advanced in years; she was past [the age of] childbearing. So Sarah laughed to herself [when she heard the LORD’S words], saying, “After I have become old, shall I have pleasure and delight, my lord (husband) being also old?” [1 Pet 3:6] And the LORD asked Abraham, “Why did Sarah laugh [to herself], saying, ‘Shall I really give birth [to a child] when I am so old?’ Is anything too difficult or too wonderful for the LORD? At the appointed time, when the season [for her delivery] comes, I will return to you and Sarah will have a son.” [Matt 19:26] Then Sarah denied it, saying, “I did not laugh”; because she was afraid. And He (the LORD) said, “No, but you did laugh.”
Then the men got up from there, and looked toward Sodom; and Abraham walked with them to send them on the way. The LORD said, “Shall I keep secret from Abraham [My friend and servant] what I am going to do, [Gal 3:8] since Abraham is destined to become a great and mighty nation, and all the nations of the earth will be blessed through him? [Gen 12:2, 3] For I have known (chosen, acknowledged) him [as My own], so that he may teach and command his children and [the sons of] his household after him to keep the way of the LORD by doing what is righteous and just, so that the LORD may bring upon Abraham what He has promised him.”