וַיֵּ֥ט שָׁמַ֖יִם וַיֵּרַ֑ד וַעֲרָפֶ֖ל תַּ֥חַת רַגְלָֽיו׃
He bowed the heavens also, and came down; and thick darkness was under His feet.
Read Jewish philosophy on II Samuel 22:10: Rambam's Guide for the Perplexed, Saadia Gaon, and classical Jewish philosophical sources, free online.