Psalm 6

Psalm 6 is full of pathos and struggle. David pleads with God not to rebuke him because he is weary and weak. Both his bones and soul are "vexed." He describes restless nights filled with his tears. Yet deep within these struggles, he does not lose sight of God. For David, the question is more God's timing, "How long, O Lord," he asks. Toward the end he expresses confidence that the Lord will receive his prayer and punish his enemies.

The concept of the shame and punishment of one's enemies strikes me as very old and very Old Testament. Christ's call to love our enemies is in stark contrast:

“But to you who are listening I say: Love your enemies, do good to those who hate you, bless those who curse you, pray for those who mistreat you. -Luke 6:27-28