Contradiction with Galatians 1:9
Galatians 1:9 emphasizes rejecting any gospel contrary to the one already accepted, which contrasts with 2 John 1:2 rejoicing in truth.
Galatians 1:9: As we said before, so say I now again, If any [man] preach any other gospel unto you than that ye have received, let him be accursed.
Contradiction with John 17:17
John 17:17 speaks to sanctification through truth, implying it's absolute, whereas 2 John 1:2 implies a personal or shared truth.
John 17:17: Sanctify them through thy truth: thy word is truth.
Contradiction with James 1:8
James 1:8 talks about a double-minded man being unstable, which contradicts with 2 John 1:2’s certainty in truth.
James 1:8: A double minded man [is] unstable in all his ways.
Contradiction with Proverb 14:12
Proverb 14:12 warns that what seems right may lead to death, which contradicts the assured truth 2 John 1:2 discusses.
Contradiction with Matthew 7:21
Matthew 7:21 notes that not everyone who acknowledges Jesus will enter heaven, contrasting with 2 John 1:2’s emphasis on truth dwelling within-believers.
Matthew 7:21: Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Contradiction with Romans 12:2
Romans 12:2 urges transformation through mind renewal, differing from 2 John 1:2’s implication that truth is already present.
Romans 12:2: And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what [is] that good, and acceptable, and perfect, will of God.