Charles H. Spurgeon on Psalms 34:19

Many are the afflictions of the righteous, etc. When David did behold his trouble, like the host of the Aramites 2Ki 6:16, he looked back unto God like Elisha, and spied one with him stronger than all against him. Therefore, respecting his afflictions he crieth, Many are the troubles of the righteous; respecting the promise he says, The Lord delivereth him out of all. Thus, by his own foot, David measures the condition of the righteous, and saith, Many are the troubles of the righteous; and then, by his own cure, he showeth how they should be healed, saying, The Lord will deliver him out of them all. ...The lawyer can deliver his client but from strife, the physician can deliver his patient but from sickness, the master can deliver his servant but from bondage, but the Lord delivereth us from all. As when Moses came to deliver the Israelites, he would not leave a hoof behind him, so when the Lord cometh to deliver the righteous he will not leave a trouble behind him. He who saith, "I put away all thine iniquities," will also say, "I put away all thine infirmities." Henry Smith.