And yet indeed she is my sister; she is the daughter of my father, but not the daughter of my mother; and she became my wife.

And moreover she is indeed my sister, the daughter of my father, but not the daughter of my mother; and she became my wife:

Howbeit, otherwise also she is truly my sister, the daughter of my father, and not the daughter of my mother, and I took her to wife.

and also, truly she is my sister, daughter of my father, only not daughter of my mother, and she becometh my wife;

And, in fact, she is my sister, the daughter of my father, but not the daughter of my mother; and she became my wife:

Et etiam vere soror mea filia patris mei est, veruntamea non filia matris meae: et fuit mihi in uxorem meam.

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.

She is my sister - I have not told a lie; I have suppressed only a part of the truth. In this place it may be proper to ask, What is a lie? It is any action done or word spoken, whether true or false in itself, which the doer or speaker wishes the observer or hearer to take in a contrary sense to that which he knows to be true. It is, in a word, any action done or speech delivered with the intention to deceive, though both may be absolutely true and right in themselves. See note on Genesis 12:13.
The daughter of my father, but not - of my mother - Ebn Batrick, in his annals, among other ancient traditions has preserved the following: "Terah first married Yona, by whom he had Abraham; afterwards he married Tehevita, by whom he had Sarah." Thus she was the sister of Abraham, being the daughter of the same father by a different mother.

And yet indeed [she is] my (m) sister; she [is] the daughter of my father, but not the daughter of my mother; and she became my wife.
(m) By sister, he means his full cousin, and by daughter Abraham's niece, (Genesis 11:29) for so the Hebrews use these words.

And yet indeed she is my sister,.... In the same sense as Lot was his brother; for she was sister to Lot, and both were the children of Haran, the brother of Abraham:
she is the daughter of my father, but not the daughter of my mother; she was the daughter of his father, being his granddaughter, grandchildren are sometimes called children, but not the daughter or granddaughter of Abraham's mother; Terah having had two wives, by the one he had Haran, the father of Sarah, and by the other Abraham. According to the Arabic writers (f), Abraham and Sarah were the immediate children of Terah, but by two mothers:"the mother of Abraham (they say) died, whose name was Juna, and Terah married another wife, whose name was Lahazib, some say Tahuitha, who bore him Sarah, afterwards married to Abraham; hence Abraham said, she is my sister on my father's side, but not on my mother's side:"
and she became my wife; as in those times it was judged lawful, and so it has been accounted lawful in many nations to marry sisters on the father's side, when those on the mother's were prohibited (g).
(f) Elmacinus, p. 51. Patricides, p. 17. apud Hottinger. Smegma Oriental. p. 281. (g) Vid. Philo. de Special. Leg. p. 779. Clement. Alex. Stromat. l. 2. p. 421.

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" [Zac 8:16; Ephesians 4:25].