Contradiction with James 3:17
Proverbs 6:14 speaks of frowardness and devising mischief, while James 3:17 emphasizes wisdom that is pure, peaceable, and without hypocrisy.
James 3:17: But the wisdom that is from above is first pure, then peaceable, gentle, [and] easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. [partiality: or, wrangling]
Contradiction with Romans 12:18
Proverbs 6:14 mentions sowing discord and mischief, whereas Romans 12:18 encourages living peaceably with all men.
Romans 12:18: If it be possible, as much as lieth in you, live peaceably with all men.
Contradiction with Ephesians 4:31-32
Proverbs 6:14 describes wickedness and deceit, in contrast to Ephesians 4:31-32 which advocates for kindness, forgiveness, and putting away bitterness and malice.
Ephesians 4:31-32: Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice:
Contradiction with Matthew 5:9
Proverbs 6:14 involves sowing discord, while Matthew 5:9 blesses peacemakers as the children of God.
Matthew 5:9: Blessed [are] the peacemakers: for they shall be called the children of God.
Contradiction with 1 Thessalonians 5:15
Proverbs 6:14 talks about devising mischief, as opposed to 1 Thessalonians 5:15 which urges not to render evil for evil but to pursue good for all.
1 Thessalonians 5:15: See that none render evil for evil unto any [man]; but ever follow that which is good, both among yourselves, and to all [men].
Contradiction with Philippians 2:3
Proverbs 6:14 implies malicious intentions, while Philippians 2:3 promotes doing nothing with strife but with humility.
Philippians 2:3: [Let] nothing [be done] through strife or vainglory; but in lowliness of mind let each esteem other better than themselves.
Contradiction with Galatians 5:22-23
Proverbs 6:14 suggests frowardness, in contrast to Galatians 5:22-23 that lists the fruits of the Spirit, including love, joy, peace, and gentleness.
Galatians 5:22-23: But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,