Contradiction with Galatians 5:4
This verse suggests that individuals can fall from grace, contradicting Romans 1:6's notion of the called being steadfast in their relationship with Christ.
Galatians 5:4: Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace.
Contradiction with Hebrews 6:4-6
This passage indicates that those who were once enlightened can fall away, challenging the idea in Romans 1:6 that the calling of believers is irrevocable.
Hebrews 6:4-6: For [it is] impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,
Contradiction with Matthew 22:14
This verse states that many are called, but few are chosen, conflicting with Romans 1:6, which implies a definitive calling of believers.
Matthew 22:14: Then went the Pharisees, and took counsel how they might entangle him in [his] talk.
Contradiction with 2 Peter 2:20-22
These verses describe those who have known the way of righteousness and then turned away, contrasting with Romans 1:6's implication of a secure calling.
2 Peter 2:20-22: For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.
Contradiction with John 15:6
Jesus speaks about branches that do not remain in Him being cast away, which opposes the belief in Romans 1:6 of a permanent calling and fellowship with Christ.
John 15:6: If a man abide not in me, he is cast forth as a branch, and is withered; and men gather them, and cast [them] into the fire, and they are burned.