Among the people of the Book are some, to one of whom if thou entrust a thousand dinars, he will restore them to thee: And there is of them to whom if thou entrust a dinar, he will not restore it to thee, unless thou be ever instant with him. This - because they say, "We are not bound to keep faith with the ignorant (Pagan) folk, and they utter a lie against God, and know they do so:"