We illustrate the subject thus. We believe in God. That is to say, we believe in the fact of his existence. What we perceive, and what we feel, and what reason teaches us, leaves no doubt, that God is. To God, considered as an object of belief, faith attaches itself with the greatest firmness. Once having taken its position, it remains unchanged; in other words, it is, and it continues to be a fixed and controlling principle of the mind, notwithstanding reason may suggest many doubts as to the mode of his existence and the manner of his operation.
And in connection with this general view, I think we may lay down the principle, that the stronger our faith is, the less we are likely to be perplexed by such reasonings as have been indicated. We may suppose, in illustration of what has now been said, a case of this kind. A person, who has full faith in God, is afflicted by some great calamity. Reason is ready to inquire, why it is so, or suggest many doubts as to its justice. But strong faith, having its source in appropriate and adequate grounds of origin, and resting in the general idea of God’s truth and justice and goodness, repels all such suggestions at once; and maintains the soul in quietness and Christian strength.
— The Life of Faith (1852) Part 1, Chapter 14.