Matthew Poole and continuators on Leviticus 21:7

7 They shall not take a wife that is a whore, or profane , neither shall they take a woman put away from her husband : for he is holy unto his God.

Or, defiled, or defloured, though it were done secretly, or by accident, or by force: because the Priest must take care that all the members of his family be free not onely from gross wickedness, but from all suspitions of evil and occasions of reproach or contempt, because this would reflect upon himself and upon his God and religion also. The word may note one defloured by any person, though it were by her husband, or a widow, because not onely the High-priest was obliged to marry a virgin, ver. 13. but also the inferiour Priests, as appears from Ezek. 44. 22. and that is either signified by this word or by none other here. It is true, a widow, and a profane person are distinguished, ver. 14. but the same word may be and oft is taken in differing sences, both more largely and more strictly, in the same chapter. And there was some reason why it should be more expresly and distinctly set down there, a widow, or one profane or defloured otherwise, because there was the more need of caution in the High-priest, and therefore the widow is particularly mentioned, which in the former case might be sufficiently comprehended under a general title.

Though not for adultery but for light causes and by the husbands fault, because though the woman might be wholly innocent and free, yet it would leave some blemish upon her.

Marginal references: Ezek. 44. 22.