Bible Verses About Chastity: Temptation to deviate from, dangerous

In the mean time it happened that David arose from his bed after noon, and walked upon the roof of the king's house: And he saw from the roof of his house a woman washing herself, over against him: and the woman was very beautiful.

And the king sent, and inquired who the woman was. And it was told him, that she was Bethsabee the daughter of Eliam, the wife of Urias the Hethite.

And David sent messengers, and took her, and she came in to him, and he slept with her: and presently she was purified from her uncleanness: