Contradiction with Proverbs 24:17
This verse admonishes not to rejoice when an enemy falls, which can be seen as contradictory to the implicit acceptance of Absalom's return.
Proverbs 24:17: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with Matthew 5:44
This verse teaches to love your enemies and pray for those who persecute you, which contrasts with longing for someone who had committed wrongdoing.
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 12:19
This verse advises against seeking vengeance, which contradicts David's eventual acceptance of the situation without seeking justice for Amnon.
Romans 12:19: Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord.
Contradiction with Leviticus 19:18
This verse instructs not to seek revenge or bear a grudge, which contrasts with the unresolved justice for Amnon in the narrative of Absalom's return.
Leviticus 19:18: Thou shalt not avenge, nor bear any grudge against the children of thy people, but thou shalt love thy neighbour as thyself: I [am] the LORD.