King James Version (KJV)
His mouth is full of cursing and deceit and fraud: under his tongue is mischief and vanity.
Modern English
His mouth is filled with cursing and deceit and oppression; under his tongue are mischief and iniquity.
Hebrew
אָלָ֣ה פִ֭יהוּ מָלֵ֣א וּמִרְמ֑וֹת וָ֝תֹ֗ךְ תַּ֣חַת לְשׁוֹנ֣וֹ עָמָ֣ל וָאָֽוֶן׃
ʾalah piyhv maleʾ vmirmvot vatok taḥat lshvonvo ʿamal vaʾaven