My Notes
Authors
Jamieson, Fausset, and Brown - Commentary Critical and Explanatory on the Whole Bible
12. yet indeed she is my sister—(See on Genesis 11:31 ). What a poor defense Abraham made. The statement absolved him from the charge of direct and absolute falsehood, but he had told a moral untruth because there was an intention to deceive (compare Genesis 12:11-13 ). “Honesty is always the best policy.” Abraham’s life would have been as well protected without the fraud as with it: and what shame to himself, what distrust to God, what dishonor to religion might have been prevented! “Let us speak truth every man to his neighbor” [Zechariah 8:16 ; Ephesians 4:25 ].
John Calvin - Commentaries
**And yet indeed she is my sister. Some suppose Sarah to have been Abraham’s own sister, yet not by the same mothers but born from a second wife. As, however, the name sister has a wider signification among the Hebrews, I willingly adopt a different conjecture; namely, that she was his sister in the second degree; thus it will be true that they had a common father, that is, a grandfather, from whom they had descended by brothers. Moreover, Abraham extenuates his offense, and draws a distinction between his silence and a direct falsehood; and certainly he professed with truth, that he was the brother of Sarah. Indeed it appears that he feigned nothing in words which differed from the facts themselves; yet when all things have been sifted, his defense proves to be either frivolous, or, at least, too feeble. For since he had purposely used the name of sister as a pretext, lest men should have some suspicion of his marriage; he sophistically afforded them an occasion of falling into error. Wherefore, although he did not lie in words, yet with respect to the matter of fact, his dissimulation was a lie, by implication. He had, however, no other intention than to declare that he had not dealt fraudulently with Abimelech; but that, in an affair of great anxiety, he had caught at an indirect method of escape from death, by the pretext of his previous relationship to his wife.