Psalms 27:13

Psalms 27:13. I had fainted, unless I had believed to see the goodness of the LORD in the land of the living.

With troubles without, and fears within, and slanderers and enemies of all sorts around him, the Christian had almost fainted; but faith puts the divine smelling-bottle to his nose, and as soon as ever the nostril perceives the sweet perfume of God’s faithfulness, the man is revived: "I had fainted, unless I had believed." So, you see that you must do either the one or the other; you must either believe or faint, for, by unbelief and sin, a spiritual fainting fit will soon come on.