Contradiction with Isaiah 55:7
God's willingness to forgive is not limited by human gestures such as putting on sackcloth.
Isaiah 55:7: Let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the LORD, and he will have mercy upon him; and to our God, for he will abundantly pardon. [the unrighteous...: Heb. the man of iniquity] [abundantly...: Heb. multiply to pardon]
Contradiction with Matthew 5:44
Jesus teaches to love enemies, contrasting Ahab's acceptance of Ben-Hadad's plea for life out of fear or diplomacy.
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;