Genesis 18:8-10

New Revised Standard Version, Anglicised Catholic Edition

⁸ Then he took curds and milk and the calf that 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 your wife Sarah?’ And he said, ‘There, in the tent.’ ¹⁰ Then one said, ‘I will surely return to you in due season, and your wife Sarah shall have a son.’ And Sarah was listening at the tent entrance behind him.