דַּבֵּר֙ אֶל־בְּנֵ֣י יִשְׂרָאֵ֔ל וְאָמַרְתָּ֖ אֲלֵהֶ֑ם אֲנִ֖י יְהוָ֥ה אֱלֹהֵיכֶֽם׃
Speak unto the children of Israel, and say unto them: I am the LORD your God.
Read kabbalistic (mystical) interpretation of Leviticus 18:2: and classical mystical sources.