2 Samuel 22:23-27

For all his judgments were before me: and as for his statutes, I did not depart from them.

I was also upright before him, and have kept myself from mine iniquity.

Therefore the LORD hath recompensed me according to my righteousness; according to my cleanness in his eye sight.

With the merciful thou wilt shew thyself merciful, and with the upright man thou wilt shew thyself upright.

With the pure thou wilt shew thyself pure; and with the froward thou wilt shew thyself unsavoury.