Genesis 18:10
He said, “I will certainly return to you at about this time next year; and behold, Sarah your wife will have a son.” Sarah heard in the tent door, which was behind him.
World English Bible (Public Domain)
In context
Before · Genesis 18:8–9
8He took butter, milk, and the calf which he had dressed, and set it before them. He stood by them under the tree, and they ate. 9They asked him, “Where is Sarah, your wife?” He said, “There, in the tent.”
10He said, “I will certainly return to you at about this time next year; and behold, Sarah your wife will have a son.” Sarah heard in the tent door, which was behind him.