Genesis 18:8-10

Revised Standard Version Catholic Edition

⁸ Then he took curds, and milk, and the calf which he had prepared, and set it before them; and he stood by them under the tree while they ate.

⁹ They said to him, “Where is Sarah your wife?” And he said, “She is in the tent.” ¹⁰ The Lord said, “I will surely return to you in the spring, and Sarah your wife shall have a son.” And Sarah was listening at the tent door behind him.