Charles H. Spurgeon on Psalms 62:6

He only is my rock and my salvation. Alone, and without other help, God is the foundation and completion of my safety. We cannot too often hear the toll of that great bell only; let it ring the death knell of all carnal reliances, and lead us to cast ourselves on the bare arm of God. He is my defence. Not my defender only, but my actual protection. I am secure, because he is faithful. I shall not be moved —not even in the least degree. See how his confidence grows. In the second verse an adverb qualified his quiet; here, however, it is absolute; he altogether defies the rage of his adversaries, he will not stir an inch, nor be made to fear even in the smallest degree. A living faith grows; experience develops the spiritual muscles of the saint, and gives a manly force which our religious childhood has not yet reached.