Contradiction with Matthew 12:34
This verse emphasizes speaking good things from the abundance of the heart, while Proverbs 26:23 warns about insincere speech from a corrupt heart.
Matthew 12:34: O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
Contradiction with Proverbs 15:28
This verse highlights that the righteous study to answer wisely, contrasting with the deceitful speech warned in Proverbs 26:23.
Proverbs 15:28: The heart of the righteous studieth to answer: but the mouth of the wicked poureth out evil things.
Contradiction with Ephesians 4:15
This verse advocates speaking the truth in love, opposing the insincerity mentioned in Proverbs 26:23.
Ephesians 4:15: But speaking the truth in love, may grow up into him in all things, which is the head, [even] Christ: [speaking...: or, being sincere]
Contradiction with James 3:17
This verse describes wisdom from above as pure and sincere, conflicting with the insincerity of Proverbs 26:23.
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 Proverbs 10:11
This verse portrays the mouth of the righteous as a fountain of life, differing from the destructive speech hinted at in Proverbs 26:23.
Proverbs 10:11: The mouth of a righteous [man is] a well of life: but violence covereth the mouth of the wicked.
Contradiction with Colossians 3:9
This verse instructs not to lie to one another, while Proverbs 26:23 refers to deceptive speech.
Colossians 3:9: Lie not one to another, seeing that ye have put off the old man with his deeds;
Contradiction with Psalm 37:30
This verse says the mouth of the righteous speaks wisdom, contrasting with the deceitful speech in Proverbs 26:23.
Psalm 37:30: The mouth of the righteous speaketh wisdom, and his tongue talketh of judgment.
Contradiction with 1 Peter 3:10
This verse advises to refrain from speaking guile, which opposes the deceitful nature indicated in Proverbs 26:23.
1 Peter 3:10: For he that will love life, and see good days, let him refrain his tongue from evil, and his lips that they speak no guile:
Contradiction with Proverbs 16:24
This verse describes pleasant words as honeycomb, opposing the discordance in Proverbs 26:23.
Proverbs 16:24: Pleasant words [are as] an honeycomb, sweet to the soul, and health to the bones.