Tanach · Rishonim on Tanach · Ibn Ezra · Torah

Ibn Ezra on Genesis 18:10/אבן עזרא על בראשית י״ח:י׳

אכעת חיה. כעת הזאת בשנה האחרת ושרה חיה כמו "כה לחי" (ש"א כה ו):
1WHEN THE SEASON COMETH ROUND. Ka-et (when the season) means next year, at this time, and chayyah (cometh round), that Sarah will then be alive.11 is not to be rendered as J.P.S. does, but rather, next year at this season and Sarah will then be alive (Weiser, Netter). It is like ko le-chai (so to life next year) (I Sam. 25:6).12
בוהוא אחריו. זה המלאך המדבר עם אברהם חיה אחרי האהל, ואברהם יושב בפתח האהל ולא ראה שרה וי"א פתח האהל שלה היה אחרי אהל אברהם:
2WHICH WAS BEHIND HIM.13, which is rendered by I.E.: and he (the angel) was behind it (the tent). The angel who spoke to Abraham was behind the tent. Abraham sat in the tent door and consequently could not see Sarah. Others say that the door of Sarah’s tent was behind the tent of Abraham.14 is to be rendered: and it. The “it” (ve-hu) refers to the door of Sarah’s tent. The verse thus reads: and it (the door of Sarah’s tent) was behind it (Abraham’s tent) (Cherez).