When Talut set forth with the armies, he said: "Allah will test you at the stream: if any drinks of its water, He goes not with my army: Only those who taste not of it go with me: A mere sip out of the hand is excused." but they all drank of it, except a few. When they crossed the river,- He and the faithful ones with him,- they said: "This day We cannot cope with Goliath and his forces." but those who were convinced that they must meet Allah, said: "How oft, by Allah's will, Hath a small force vanquished a big one? Allah is with those who steadfastly persevere."
Ye shall certainly be tried and tested in your possessions and in your personal selves; and ye shall certainly Hear much that will grieve you, from those who received the Book before you and from those who worship many gods. But if ye persevere patiently, and guard against evil,-then that will be a determining factor in all affairs.