פָּנִ֣ים ׀ בְּפָנִ֗ים דִּבֶּ֨ר יְהוָ֧ה עִמָּכֶ֛ם בָּהָ֖ר מִתּ֥וֹךְ הָאֵֽשׁ׃
The LORD spoke with you face to face in the mount out of the midst of the fire—
Read kabbalistic (mystical) interpretation of Deuteronomy 5:4: and classical mystical sources.