Psalms 104:8 - Exposition

They go up by the mountains; they go down by the valleys; rather, they went up mountains; they went down valleys. In the general commotion of the waters, as they "hasted away," sometimes vast waves swept over mountain tops, sometimes huge floods washed down the courses of valleys—a graphic description of the scene which no eye saw, but which the poet figures to himself—a turmoil and confusion beyond that even of the great Deluge itself (see Genesis 7:17-19 ; Genesis 8:1-3 ). Unto the place which thou hast (rather, hadst ) founded for them. The ocean bed, which had, in intention, been already prepared to receive them.