And now I give you a commandment which shall be for a covenant between you and Me--that ye have faith; that your faith be steadfast as a rock that no storms can move, that nothing can disturb, and that it endure through all things even to the end; even should ye hear that your Lord has been crucified, be not shaken in your faith; for I am with you always, whether living or dead, I am with you to the end. As ye have faith so shall your powers and blessings be. This is the balance--this is the balance.

‘Abdu’l-Bahá
Pilgrim note in May Maxwell, An Early Pilgrimage.