2 Samuel 22:26-27

(26) With the merciful thou wilt shew thyself merciful, and with the upright man thou wilt shew thyself upright. (27) With the pure thou wilt shew thyself pure; and with the froward thou wilt shew thyself unsavoury.

To a true believer in CHRIST, GOD'S righteousness is as dear and precious as his mercy, or his love; because he sees in JESUS, as the GOD-man, that righteousness fully glorified, and grace reigning through righteousness unto eternal life. So that to the pure all things are pure, Titus 1:15.