Charles H. Spurgeon on Psalms 104:10

He sendeth the springs into the valleys. Men cut places for rivers to run in, but none but God can cut a channel to bring spiritual streams into the soul. The psalmist speaks of the sending forth of springs as one great act of the providence of God. It is a secret mystery which those that have searched deepest into nature cannot resolve us in, how those springs are fed, how they are maintained and nourished, so as to run without ceasing in such great streams as many of them make. Philosophy cannot show the reason of it. The Psalmist doth it well: God sends them into the valleys, his providence and power keeps them continually running: he that would have his soul watered must go to God in prayer. Ralph Robinson.