Then Abimelech called Abraham, and said unto him, What have you done unto us? and how have I offended you, that you have brought on me and on my kingdom a great sin? you have done deeds unto me that ought not to be done.
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George Leo Haydock
Why He expostulates with him in a friendly but earnest manner.
A great sin, or punishment, (Menochius) ver. 18, and exposed me to the danger of committing adultery. Abraham might have answered, this would have been his own fault, as he could not have done it without offering violence to Sara, in whose chastity he could confide. Having an opportunity here to vindicate himself, Abraham speaks freely, which he was not allowed to do in Egypt, chap. xii. 20. ...
What was the reason, he asked, that you wanted to embroil me in such a terrible sin? What on earth did you have in mind in doing it? See how Abimelech shows by his own words the threat delivered against him by God. You see, since God had said to him, “If you do not restore her, death will come upon you and all that is yours,” Abimelech interprets this very thing in saying, “What offense did I give you to cause you to bring such a great sin on me and my kingdom?” I mean, surely the extent of the punishment did not stop at me? My whole kingdom was set to be utterly destroyed through the deception you contrived. “So what did you have in mind in doing it?” Homilies on Genesis ...