Contradiction with Ezekiel 18:20
Romans 4:7 speaks of blessedness of forgiven sins, while Ezekiel 18:20 emphasizes individual responsibility for one's own sin.
Ezekiel 18:20: The soul that sinneth, it shall die. The son shall not bear the iniquity of the father, neither shall the father bear the iniquity of the son: the righteousness of the righteous shall be upon him, and the wickedness of the wicked shall be upon him.
Contradiction with Matthew 12:36
Romans 4:7 talks of sins forgiven and forgotten, but Matthew 12:36 warns that people will have to account for every idle word spoken, highlighting continued accountability.
Matthew 12:36: But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.
Contradiction with Galatians 6:7
Romans 4:7 implies the blessing of forgiveness, whereas Galatians 6:7 reminds that "whatsoever a man soweth, that shall he also reap," suggesting inevitable consequences.
Galatians 6:7: Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap.