Contradiction with Isaiah 52:7
Describes the feet of those who bring good news, contrasting with the description of swift feet to shed blood in Romans 3:15.
Isaiah 52:7: How beautiful upon the mountains are the feet of him that bringeth good tidings, that publisheth peace; that bringeth good tidings of good, that publisheth salvation; that saith unto Zion, Thy God reigneth!
Contradiction with Matthew 5:9
Talks about the blessedness of peacemakers, opposing the inclination to violence mentioned in Romans 3:15.
Matthew 5:9: Blessed [are] the peacemakers: for they shall be called the children of God.
Contradiction with Proverbs 12:20
States that those who plan peace have joy, contrasting with the theme of destructive intents in Romans 3:15.
Proverbs 12:20: Deceit [is] in the heart of them that imagine evil: but to the counsellors of peace [is] joy.
Contradiction with James 3:18
Mentions that peacemakers who sow in peace reap a harvest of righteousness, which is contrary to the violent actions implied in Romans 3:15.
James 3:18: And the fruit of righteousness is sown in peace of them that make peace.
Contradiction with Isaiah 59:8
Speaks of not knowing the way of peace, suggesting a lack of conflict, which conflicts with the idea of shedding blood quickly in Romans 3:15.
Isaiah 59:8: The way of peace they know not; and [there is] no judgment in their goings: they have made them crooked paths: whosoever goeth therein shall not know peace. [judgment: or, right]