Proverbs 26:24 KJV

He that hateth dissembleth with his lips, and layeth up deceit within him;

Proverbs 26:1–28Honour is out of season to those unworthy and unfit for it. 2. He that is cursed without cause, the curse shall do him no more harm than the bird that flies...

Proverbs 12:20 Deceit is in the heart of them that imagine evil: but to the counsellors of peace is joy.
Psalms 41:6 And if he come to see me, he speaketh vanity: his heart gathereth iniquity to itself; when he goeth abroad, he telleth it.
Proverbs 10:18 He that hideth hatred with lying lips, and he that uttereth a slander, is a fool.
Proverbs 11:1 A false balance is abomination to the LORD: but a just weight is his delight.
Proverbs 12:5 The thoughts of the righteous are right: but the counsels of the wicked are deceit.
Proverbs 12:17 He that speaketh truth sheweth forth righteousness: but a false witness deceit.
Proverbs 14:8 The wisdom of the prudent is to understand his way: but the folly of fools is deceit.

From OpenBible.info, most relevant first.

He that hateth שׂוֹנֵא śônēʾ שָׂנֵא Verb · qal active participle, masculine singular
dissembleth יִנָּכֵר yinnākēr נָכַר Verb · niphal imperfect, third person masculine singular
with his lips בִּשְׂפָתָיו biśpātāyw שָׂפָה Noun · feminine dual construct · with preposition, suffix: third person masculine singular
and layeth up יָשִׁית yāšît שִׁית Verb · qal imperfect, third person masculine singular
deceit מִרְמָה mirmâ מִרְמָה Noun · feminine singular
within וּבְקִרְבּוֹ ûbĕqirbô קֶרֶב Noun · masculine singular construct · with and, preposition, suffix: third person masculine singular

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