Genesis Chapter 18, Verse 10

10: And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.- edit KJV text
10: And he said to him: I will return and come to thee at this time, life accompanying, and Sara, thy wife, shall have a son. Which when Sara heard, she laughed behind the door of the tent.— edit Douay text
10: And he said, I will return and come to thee according to this period seasonably, and Sarrha thy wife shall have a son; and Sarrha heard at the door of the tent, being behind him.— edit LXX text