Proverbs 31:10 Who can find a virtuous woman? For her price is far above rubies.
Proverbs 12:4 A virtuous woman is a crown to her husband: but she that maketh ashamed is as rottenness in his bones.
D & C 42:23 And he that looketh upon a woman to lust after her shall deny the faith, and shall not have the Spirit; and if he repents not he shall be cast out.
D&C 63: 16 And verily I say unto you, as I have said before, he that looketh on a woman to lust after her, or if any shall commit adultery in their hearts, they shall not have the Spirit, but shall deny the faith and shall fear.
3 Nephi 12:28 But I say unto you, that whosoever looketh on a woman, to lust after her, hath committed adultery already in his heart.
(I imagine the gender applied in these verses is not exclusive.)