He turns rivers into a desert, springs of water into thirsty ground,
34 a fruitful land into a salty waste, because of the evil of its inhabitants.
Why? Because He loves them and He is working all things together for good for those who love Him. As Matthew Henry says, "If Christ be ours, all things, one way or another, shall be for our eternal good."
So how are we to react to the hours of pain and sorrow? By knowing that the same God who turns rivers into a desert can and will turn a desert into pools of water.
35 He turns a desert into pools of water, a parched land into springs of water.
God alone knows what is best. He alone is able to teach us to trust Him fully. He is our shield in times of temptation, our shelter in a weary land. He knows what it is to be despised and forsaken, to suffer want, to be mocked and smitten and reviled. He also knows that we are blessed when we partake of His sufferings in some small way.
Ps. 119:65 Before I was afflicted I went astray, but now I keep your word.
71 It is good for me that I was afflicted, that I might learn your statutes.
43 Whoever is wise, let him attend to these things;
let them consider the steadfast love of the Lord