2 Samuel 22:21 is an earlier parallel stating the same reward for righteousness and cleanness — reinforcing the theme.

Romans 2:8 reveals the opposite outcome: wrath for the self-seeking—contrasting the reward David receives for cleanness.

2 Corinthians 5:10 teaches that each receives what is due for deeds—expanding the principle of recompense David experiences.

Isaiah 3:10 declares that the righteous will be rewarded — affirming the principle underlying David's claim of recompense.

Romans 2:7 declares God's reward for those who patiently do good—parallel to David's claim of being recompensed for righteousness.

Proverbs 5:21 asserts God sees all paths—providing the basis for the divine reward David describes in his song.