Proverbs 12:20

¹⁸ There is that speaketh like the piercings of a sword: but the tongue of the wise is health.

¹⁹ The lip of truth shall be established for ever: but a lying tongue is but for a moment.

Deceit is in the heart of them that imagine evil: but to the counsellors of peace is joy.

²¹ There shall no evil happen to the just: but the wicked shall be filled with mischief.

²² Lying lips are abomination to the LORD: but they that deal truly are his delight.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: Deceit is in the hearts of those who devise evil, but the counselors of peace have joy.
KJV: Deceit is in the heart of them that imagine evil: but to the counsellors of peace is joy.
WEB: Deceit is in the heart of those who plot evil, but joy comes to the promoters of peace.
ASV: Deceit is in the heart of them that devise evil; But to the counsellors of peace is joy.
DARBY: Deceit is in the heart of them that devise evil; but to the counsellors of peace is joy.
BLB: Deception [is] in the heart of those devising evil, and for those counseling peace [is] joy.

ÅB: Det er svik i deres hjerte som smir ondt; men de som råder til fred, får glede.
OTB: De som har svik i hjertet, planlegger ondt, men de som fremmer fred, opplever glede.
B1930: Det er svik i deres hjerte som smir ondt; men de som råder til fred, får glede.

Matthew 5:9
Blessed are the peacemakers: for they shall be called the children of God.
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1 Peter 3:8–13
Finally, be ye all of one mind, having compassion one of another, love as brethren, be pitiful, be courteous:
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Mark 7:21–22
For from within, out of the heart of men, proceed evil thoughts, adulteries, fornications, murders,
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Jeremiah 17:16
As for me, I have not hastened from being a pastor to follow thee: neither have I desired the woeful day; thou knowest: that which came out of my lips was right before thee.
Read in context
Zechariah 6:13
Even he shall build the temple of the LORD; and he shall bear the glory, and shall sit and rule upon his throne; and he shall be a priest upon his throne: and the counsel of peace shall be between them both.
Read in context
Proverbs 12:12
The wicked desireth the net of evil men: but the root of the righteous yieldeth fruit.
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Proverbs 26:24–26
He that hateth dissembleth with his lips, and layeth up deceit within him;
Read in context
Hebrews 12:14
Follow peace with all men, and holiness, without which no man shall see the Lord:
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