2191. Verse 10. And He said, Returning I will return unto thee about this time of life; and behold Sarah thy wife shall have a son. And Sarah heard at the door of the tent, and it was behind him. "And He said," signifies perception; "Returning I will return unto thee about this time of life," signifies the conjunction of the Divine with the Lord's Human; "and behold Sarah thy wife shall have a son," signifies the rational that was to be Divine; "and Sarah heard at the door of the tent," signifies rational truth then near what is holy; "and it was behind him," signifies near the good in which the rational then was, and thus separated from it insofar as anything of the human was in it.