Contradiction with Galatians 6:11
This verse emphasizes writing in large letters by Paul himself, which may imply the need for personal authentication like in 2 Thessalonians 3:17, but it differs in context and purpose.
Galatians 6:11: Ye see how large a letter I have written unto you with mine own hand.
Contradiction with 1 Corinthians 16:21
This verse serves a similar function by noting a signature, showing consistency rather than contradiction, as it serves to identify Paul's letters.
1 Corinthians 16:21: The salutation of [me] Paul with mine own hand.
Contradiction with Romans 16:22
This verse notes that Tertius wrote the letter, which contradicts the idea of Paul physically writing the conclusion as mentioned in 2 Thessalonians 3:17.
Romans 16:22: I Tertius, who wrote [this] epistle, salute you in the Lord.