Contradiction with 1 Corinthians 8:1
This verse says that knowledge puffs up, but charity edifies, which can imply that increasing faith or charity can lead to pride, seeming contradictory to praising growth in faith as in 2 Thessalonians 1:3.
1 Corinthians 8:1: Now as touching things offered unto idols, we know that we all have knowledge. Knowledge puffeth up, but charity edifieth.
Contradiction with Galatians 1:6-7
Paul expresses amazement at how quickly the Galatians are turning away from the gospel, suggesting wavering faith, contrasting with the Thessalonians' increasing faith as mentioned in 2 Thessalonians 1:3.
Galatians 1:6-7: I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:
Contradiction with James 2:19
This verse states that even demons believe and tremble, suggesting that belief alone, if not accompanied by deeds, is not fruitful, potentially contradicting the celebration of faith growth in 2 Thessalonians 1:3.
James 2:19: Thou believest that there is one God; thou doest well: the devils also believe, and tremble.
Contradiction with Revelation 2:4
Here, it's noted that the Ephesian church left their first love, possibly contrasting with the increasing love among the Thessalonians as commended in 2 Thessalonians 1:3.
Revelation 2:4: Nevertheless I have [somewhat] against thee, because thou hast left thy first love.
Contradiction with Matthew 15:8
Jesus criticizes those who honor with lips but have hearts far from God, which can be seen as contradicting the idea of true faith growth praised in 2 Thessalonians 1:3.
Matthew 15:8: This people draweth nigh unto me with their mouth, and honoureth me with [their] lips; but their heart is far from me.