Contradiction with Luke 11:23
Luke 11:23 speaks of being with or against, implying division, which contrasts with 2 Corinthians 13:8's emphasis on truth and unity over opposition.
Luke 11:23: He that is not with me is against me: and he that gathereth not with me scattereth.
Contradiction with 1 Kings 22:22
A lying spirit in the mouths of prophets contradicts the focus on truth in 2 Corinthians 13:8.
1 Kings 22:22: And the LORD said unto him, Wherewith? And he said, I will go forth, and I will be a lying spirit in the mouth of all his prophets. And he said, Thou shalt persuade [him], and prevail also: go forth, and do so.
Contradiction with Proverbs 12:22
Lies being an abomination contrasts with 2 Corinthians 13:8's insistence on supporting truth.
Proverbs 12:22: Lying lips [are] abomination to the LORD: but they that deal truly [are] his delight.
Contradiction with Jeremiah 14:14
False prophets delivering lies oppose the message of supporting truth in 2 Corinthians 13:8.
Jeremiah 14:14: Then the LORD said unto me, The prophets prophesy lies in my name: I sent them not, neither have I commanded them, neither spake unto them: they prophesy unto you a false vision and divination, and a thing of nought, and the deceit of their heart.
Contradiction with Galatians 1:7
This verse mentions some who pervert the gospel, clashing with the agreement on truth in 2 Corinthians 13:8.
Galatians 1:7: Which is not another; but there be some that trouble you, and would pervert the gospel of Christ.
Contradiction with Matthew 12:30
The notion of being for or against divides, contrasting with the unity in supporting truth in 2 Corinthians 13:8.
Matthew 12:30: He that is not with me is against me; and he that gathereth not with me scattereth abroad.
Contradiction with John 8:44
The devil as the father of lies contradicts the truth upheld in 2 Corinthians 13:8.
John 8:44: Ye are of [your] father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it. [of his own: or, from his own will or disposition]