Charles H. Spurgeon on Psalms 107:33

He turneth rivers into a wilderness, and the watersprings into dry ground. When the Lord deals with rebellious men he can soon deprive them of those blessings of which they feel most assured: their rivers and perennial springs they look upon as certain never to be taken from them, but the Lord at a word can deprive them even of these. In hot climates after long droughts streams of water utterly fail, and even springs cease to flow, and this also has happened in other parts of the world when great convulsions of the earth's surface have occurred. In providence this physical catastrophe finds its counterpart when business ceases to yield profit and sources of wealth are made to fail; as also when health and strength are taken away, when friendly aids are withdrawn, and comfortable associations are broken up. So, too, in soul matters, the most prosperous ministries may become dry, the most delightful meditations cease to benefit us, and the most fruitful religious exercises grow void of the refreshment of grace which they formerly yielded. Since

"It is God who lifts our comforts high,

Or sinks them in the grave", it behooves us to walk before him with reverential gratitude, and so to live that it may not become imperative upon him to afflict us.