Contradiction with Romans 3:28
This verse states that a person is justified by faith without the deeds of the law, which seems to contrast with 1 John 2:3 where knowing God is associated with keeping His commandments.
Romans 3:28: Therefore we conclude that a man is justified by faith without the deeds of the law.
Contradiction with Galatians 2:16
This verse emphasizes that a person is not justified by the works of the law but by faith in Jesus Christ, contradicting the implication in 1 John 2:3 where keeping commandments is a measure of knowing God.
Galatians 2:16: Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
Contradiction with Ephesians 2:8-9
These verses highlight that salvation is by grace through faith, not of works, contrasting 1 John 2:3 which emphasizes obedience to commandments as evidence of knowing God.
Ephesians 2:8-9: For by grace are ye saved through faith; and that not of yourselves: [it is] the gift of God: