And when Saul marched out with his army, he warned: "Allah is going to put you to a test by the side of a river: whoso drinks of its water shall cease to be my companion: he alone shall be~my companion who does not quench his thirst with its water: one may, however, take except a few, drank their fill of it. Afterwards when Saul, and those who had believed with him, crossed the river and advanced forward, the former said to Saul, "We have no power left this day to fight against Goliath and his hosts." But those who believed that one Day they shall meet Allah, declared, "lt has often been that a small host has, by Allah's grace, overcome a big host: for Allah is with those who show fortitude." 249 Accordingly, when they marched forward to fight with Goliath and his hosts, they prayed, "Our Lord, bless us with fortitude, make firm our foothold and give us victory over the unbelieving host." 250 So they defeated them by permission of Allah, and David killed Goliath, and Allah gave him the kingship and prophethood and taught him from that which He willed. And if it were not for Allah checking [some] people by means of others, the earth would have been corrupted, but Allah is full of bounty to the worlds. 251 These are Allah's revelations, which We are conveying to you accurately. And O Muhammad, most surely you are of those who have been sent as Messengers. 252 ۞ Of these messengers, We have given something additional among them. There are some to whom God spoke directly and others He exalted in rank. We gave Jesus, son of Mary clear signs, and strengthened him with the holy spirit. Had God pleased, those who succeeded them would not have fought against one another after the clear signs had come to them. But they disagreed among themselves; some believed, while others did not. Yet had God willed, they would not have fought against one another; but God does whatever He wills. 253