New King James Version
And He said, “I will certainly return to you according to the time of life, and behold, Sarah your wife shall have a son.” (Sarah was listening in the tent door which was behind him.)

King James Bible
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.

American Standard Version
And he said, I will certainly return unto thee when the season cometh round; and, lo, Sarah thy wife shall have a son. And Sarah heard in the tent door, which was behind him.

Berean Study Bible
Then the LORD said, “I will surely return to you at this time next year, and your wife Sarah will have a son!” Now Sarah was behind him, listening at the entrance to the tent.

Douay-Rheims Bible
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.

English Revised Version
And he said, I will certainly return unto thee when the season cometh round; and, lo, Sarah thy wife shall have a son. And Sarah heard in the tent door, which was behind him.

World English Bible
He said, "I will certainly return to you when the season comes round. Behold, Sarah your wife will have a son." Sarah heard in the tent door, which was behind him.

Young's Literal Translation
and he saith, 'returning I return unto thee, about the time of life, and lo, to Sarah thy wife a son.'

Genesis 18:10 Additional Translations ...