Genesis 18:6

18:6 So Abraham hurried into the tent and said to Sarah, “Quick! Take three measures of fine flour, knead it, and make bread.”

Genesis 18:9-10

18:9 Then they asked him, “Where is Sarah your wife?” He replied, “There, in the tent.” 18:10 One of them said, “I will surely return to you when the season comes round again, and your wife Sarah will have a son!” (Now Sarah was listening at the entrance to the tent, not far behind him.