Contradiction with James 1:19
This verse encourages quick listening, slow speaking, and slow anger, contrasting with the fears of quarrels and hostility in 2 Corinthians 12:20.
James 1:19: Wherefore, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath:
Contradiction with Ephesians 4:31
Instructs to put away bitterness, wrath, anger, clamor, and evil speaking, which are the very behaviors Paul fears are present in 2 Corinthians 12:20.
Ephesians 4:31: Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice:
Contradiction with Colossians 3:8
Advises to rid oneself of anger, wrath, malice, blasphemy, filthy communication, opposing the presence of such traits in 2 Corinthians 12:20.
Colossians 3:8: But now ye also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth.
Contradiction with 1 Peter 3:8-9
Calls for unity and brotherly love, not returning evil for evil or insult for insult, which contrasts with the contentious behavior Paul is concerned about.
1 Peter 3:8-9: Finally, [be ye] all of one mind, having compassion one of another, love as brethren, [be] pitiful, [be] courteous: [love as: or, loving to the]
Contradiction with Galatians 5:19-21
Lists works of the flesh which include strife, jealousy, and anger, contradicting the spiritual state Paul wishes to avoid in 2 Corinthians 12:20.
Galatians 5:19-21: Now the works of the flesh are manifest, which are [these]; Adultery, fornication, uncleanness, lasciviousness,
Paradox #1
2 Corinthians 12:20 highlights issues with behaviors like quarreling and jealousy. The contradiction might be that while the Bible advises against these behaviors, human nature often struggles with emotions and actions that lead to them. Even believers, despite striving for moral living, may find themselves in conflict with these teachings, showing the inconsistency between ideals and real-life actions.