Though Yahweh does not actually have feet, the Psalmist gives him human characteristics. AT: "thick darkness was beneath him" (See: [[rc://en/ta/man/translate/figs-personification]])
Here the Psalmist speaks of the wind as if it had wings like an angel. (See: [[rc://en/ta/man/translate/figs-personification]] and [[rc://en/ta/man/translate/figs-metaphor]])