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.
Ver. 10. According to the time af life.] That is, when this time shall return again; this time twelve month. See Trapp on " Gen 18:14 "
Sarah heard it in the tent-door.] She was listening out of womanish curiosity. Yet some think, the angel asked for her on purpose, that she hearing her name mentioned might listen.