Faith fosters every virtue; unbelief murders every one. Thousands of prayers have been strangled in their infancy by unbelief. Unbelief has been guilty of infanticide; it has murdered many an infant petition; many a song of praise that would have swelled the chorus of the skies, has been stifled by an unbelieving murmur; many a noble enterprise conceived in the heart has been blighted ere it could come forth, by unbelief. Many a man would have been a missionary; would have stood and preached his Master’s gospel boldly; but he had unbelief. Once make a giant unbelieving, and he becomes a dwarf. Faith is the Samsonian lock of the Christian; cut it off, and you may put out his eyes—and he can do nothing.
From the Metropolitan Tabernacle Pulpit, Volume 1, Sermon 3 by Charles Haddon Spurgeon