Charles H. Spurgeon on Psalms 56:11

In God have I put my trust. This and the former verse are evidently the chorus of the Psalm. We cannot be too careful of our faith, or see too sedulously that it is grounded on the Lord alone. I will not be afraid what man can do unto me. Faith has banished fear. He views his foes in their most forcible character, calling them not flesh, but indicating them as man, yet he dreads them not; though the whole race were his enemies he would not be afraid now that his trust is stayed on God. He is not afraid of what they threaten to do, for much of that they cannot do; and even what is in their power, what they can do, he defies with holy daring. He speaks for the future, "I will not, "for he is sure that the security of the present will suffice for days to come.