Deuteronomy 11:16 Kabbalah

הִשָּֽׁמְר֣וּ לָכֶ֔ם פֶּ֥ן יִפְתֶּ֖ה לְבַבְכֶ֑ם וְסַרְתֶּ֗ם וַעֲבַדְתֶּם֙ אֱלֹהִ֣ים אֲחֵרִ֔ים וְהִשְׁתַּחֲוִיתֶ֖ם לָהֶֽם׃

Take heed to yourselves, lest your heart be deceived, and ye turn aside, and serve other gods, and worship them;

Read kabbalistic (mystical) interpretation of Deuteronomy 11:16: and classical mystical sources.