That he give me Abishag to wife It is not likely that either Adonijah or Bath-sheba was ignorant that it was unlawful for any man to marry his father's wife: but they perhaps thought that as David knew her not, the marriage had not been completed.
Related Commentaries of 1 Kings 2:17
1 Kings 2:17
17 And he said, Speak, I pray thee, unto Solomon the king, (for he will not say thee nay,) that he give me Abishag the Shunammite to wife.