Psalms 9:4 Kabbalah

בְּשׁוּב־אוֹיְבַ֥י אָח֑וֹר יִכָּשְׁל֥וּ וְ֝יֹאבְד֗וּ מִפָּנֶֽיךָ׃

When mine enemies are turned back, They stumble and perish at Thy presence;

Read kabbalistic (mystical) interpretation of Psalms 9:4: and classical mystical sources.