Reference for Psalms 68:34

לָ֭רֹכֵב בִּשְׁמֵ֣י שְׁמֵי־קֶ֑דֶם הֵ֥ן יִתֵּ֥ן בְּ֝קוֹלוֹ ק֣וֹל עֹֽז׃

To Him that rideth upon the heavens of heavens, which are of old; Lo, He uttereth His voice, a mighty voice.

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