Contradiction with Matthew 6:1
It advises against public displays of faith for self-glorification, contrasting with the notion of faith being widely proclaimed.
Matthew 6:1: Take heed that ye do not your alms before men, to be seen of them: otherwise ye have no reward of your Father which is in heaven. [alms: or, righteousness] [of your: or, with your]
Contradiction with James 2:24
Emphasizes justification by works, which could contradict the emphasis on faith alone being proclaimed.
James 2:24: Ye see then how that by works a man is justified, and not by faith only.
Contradiction with 2 Corinthians 10:18
Suggests that commendation should come from God, not from the spreading of one's own faith by others.
2 Corinthians 10:18: For not he that commendeth himself is approved, but whom the Lord commendeth.
Contradiction with 1 Corinthians 14:20
Encourages maturity in understanding, which can be seen as conflicting with simply spreading faith without depth.
1 Corinthians 14:20: Brethren, be not children in understanding: howbeit in malice be ye children, but in understanding be men. [men: Gr. perfect, or, of a ripe age]
Contradiction with Matthew 7:21
Indicates that merely saying "Lord, Lord" is insufficient, which can contrast with the mere proclamation of faith.
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.