Contradiction with Proverbs 20:22
While Psalms 109:19 speaks of cursing clothes the wicked, Proverbs 20:22 advises against seeking revenge and encourages waiting on the Lord for deliverance.
Proverbs 20:22: Say not thou, I will recompense evil; [but] wait on the LORD, and he shall save thee.
Contradiction with Matthew 5:44
Psalms 109:19 involves cursing adversaries, but Matthew 5:44 instructs believers to love their enemies and pray for those who persecute them.
Matthew 5:44: But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
Contradiction with Romans 12:14
The spirit of cursing in Psalms 109:19 contrasts with Romans 12:14, which advises to bless those who persecute, not curse them.
Romans 12:14: Bless them which persecute you: bless, and curse not.
Contradiction with Romans 12:17
Psalms 109:19 implies calling down curses, whereas Romans 12:17 cautions against repaying evil with evil and encourages good conduct.
Romans 12:17: Recompense to no man evil for evil. Provide things honest in the sight of all men.
Contradiction with 1 Peter 3:9
Whereas Psalms 109:19 reflects cursing, 1 Peter 3:9 advises not to repay evil with evil or insult with insult, but with blessing.
1 Peter 3:9: Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
Paradox #1
Psalms 109:19 has no direct contradiction but can be seen as harsh or vengeful, conflicting with teachings about love and forgiveness found elsewhere in the Bible.