God did aforetime take a covenant from the Children of Israel, and we appointed twelve captains among them. And God said: "I am with you: if ye (but) establish regular prayers, practise regular charity, believe in my apostles, honour and assist them, and loan to God a beautiful loan, verily I will wipe out from you your evils, and admit you to gardens with rivers flowing beneath; but if any of you, after this, resisteth faith, he hath truly wandered from the path or rectitude." (5:13)