Genesis 20:8-10

"And Abimelech rose early in the morning, and called all his servants, and told these things in their ears: and the men were sore afraid. Then Abimelech called Abraham, and said unto him, What hast thou done unto us? and wherein have I sinned against thee, that thou hast brought on me and on my kingdom a great sin? thou hast done deeds unto me that ought not to be done. And Abimelech said unto Abraham, What sawest thou, that thou hast done this thing?"

Here Abraham received a just rebuke from a man far less favored than himself in spiritual matters. The great patriarch here appears in a sorry light. Some have attempted to justify his conduct on the basis that he truly trusted God's promise and that he knew God would therefore extricate him from any unpleasant or impossible situation in which he involved himself, but such a purpose on his part would have been even worse, namely, presumptuous sin.

"What sawest thou ..." The meaning of this is ambiguous and uncertain. Unger thought he meant, "Did you see any of my people committing adultery or murder?"[12] Speiser translated it, "What did you ... (fore)see?"[13] and gave the meaning as, "What ... was your purpose?"