Genesis 18:2–15

²and he lifted up his eyes and looked, and, lo, three men stood over against him: and when he saw them, he ran to meet them from the tent door, and bowed himself to the earth, ³and said, My lord, if now I have found favor in thy sight, pass not away, I pray thee, from thy servant: ⁴let now a little water be fetched, and wash your feet, and rest yourselves under the tree: ⁵and I will fetch a morsel of bread, and strengthen ye your heart; after that ye shall pass on: forasmuch as ye are come to your servant. And they said, So do, as thou hast said. ⁶And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes. ⁷And Abraham ran unto the herd, and fetched a calf tender and good, and gave it unto the servant; and he hasted to dress it. ⁸And he took butter, and milk, and the calf which he had dressed, and set it before them; and he stood by them under the tree, and they did eat.

⁹And they said unto him, Where is Sarah thy wife? And he said, Behold, in the tent. ¹⁰And he said, I will certainly return unto thee when the season cometh round; and, lo, Sarah thy wife shall have a son. And Sarah heard in the tent door, which was behind him. ¹¹Now Abraham and Sarah were old, and well stricken in age; it had ceased to be with Sarah after the manner of women. ¹²And Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also? ¹³And Jehovah said unto Abraham, Wherefore did Sarah laugh, saying, Shall I of a surety bear a child, who am old? ¹⁴Is anything too hard for Jehovah? At the set time I will return unto thee, when the season cometh round, and Sarah shall have a son. ¹⁵Then Sarah denied, saying, I laughed not; for she was afraid. And he said, Nay; but thou didst laugh.