O true believers, make not your alms of none effect by reproaching, or mischief, as he who layeth out what he hath to appear unto men to give alms, and believeth not in God and the last day. The likeness of such a one, is as a flint covered with earth, on which a violent rain falleth, and leaveth it hard. They cannot prosper in any thing which they have gained, for God directeth not the unbelieving people.