Albert Barnes' Notes on the Whole Bible - Psalms 104:10
He sendeth the springs into the valleys - Though the waters are gathered together into seas, yet God has taken care that the earth shall not be dry, parched, and barren. He has made provision for watering it, and by a most wise, wonderful, and benevolent arrangement, he has formed springs among the valleys and the hills. It is now animated nature which comes before the eye of the psalmist; and all this he traces to the fact that the earth is “watered,” and that it is not a waste of rocks and... read more
The Pulpit Commentary - Psalms 104:10
He sendeth the springs into the valleys; rather, into the water courses, or torrent beds—dry for the greater part of the year, but deriving life and beauty from the springs which, after rain has fallen, flow into them. Which run among the hills; literally, between the hills ( i.e. the hill slopes on either side) they wend their way. read more