חבקוק ג:י פירוש: רש״י

Mountains saw You and quaked The mountains of the streams of Arnon that cleft to one another.

A stream of water passed When they crossed the Jordan, the water was “completely cut off,” and the flow of the stream of water passed downstream; the water “which came down from above stood and rose up.”

The deep gave forth its voice The inhabitants of the land praised Him.