When Saul led his armies, he said: "God will test you by a stream. Whoever drinks its water will not be of me; but those who do not drink shall be on my side. The only exception will be those who scoop up a palmful of water with their hands." And but for a few they all drank of its water. When they had crossed it, and those who believed with him, they said: "We have no strength to combat Goliath and his forces today. But those who believed they have to face their Lord, said: "Many a time has a small band defeated a large horde by the will of God. God is with those who are patient (and persevere)." 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 By Allah's will they routed them; and David slew Goliath; and Allah gave him power and wisdom and taught him whatever (else) He willed. And did not Allah Check one set of people by means of another, the earth would indeed be full of mischief: But Allah is full of bounty to all the worlds. 251 These are the portents of Allah which We recite unto thee (Muhammad) with truth, and lo! thou art of the number of (Our) messengers; 252 ۞ We gave some of Our Messengers preference over others. To some of them God spoke and He raised the rank of some others. We gave authoritative proofs to Jesus, son of Mary, and supported him by the Holy Spirit. Had God wanted, the generations who lived after those Messengers would not have fought each other after the authority had come to them. But they differed among themselves, some of them believed in the authority and others denied it. They would not have fought each other had God wanted, but God does as He wills. 253