Psalms 10:7 Kabbalah

אָלָ֤ה פִּ֣יהוּ מָ֭לֵא וּמִרְמ֣וֹת וָתֹ֑ךְ תַּ֥חַת לְ֝שׁוֹנ֗וֹ עָמָ֥ל וָאָֽוֶן׃

His mouth is full of cursing and deceit and oppression; Under his tongue is mischief and iniquity.

Read kabbalistic (mystical) interpretation of Psalms 10:7: and classical mystical sources.