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.

וַיֹּ֗אמֶר שׁ֣וֹב אָשׁ֤וּב אֵלֶ֨יךָ֙ כָּעֵ֣ת חַיָּ֔ה וְהִנֵּה בֵ֖ן לְשָׂרָ֣ה אִשְׁתֶּ֑ךָ וְשָׂרָ֥ה שֹׁמַ֛עַת פֶּ֥תַח הָאֹ֖הֶל וְה֥וּא אַחֲרָֽיו