When Saul set forth with the army he said, "God will test you with a river. Those who drink its water will not be of my people and those who do not even taste the water or who only taste some of it from within the hollow of their hand, will be my friends. They all drank the water except a few of them. When Saul and those who believed in him crossed the river, his people said, "We do not have the strength to fight against Goliath and his army." Those who thought that they would meet God said, "How often, with God's permission, have small groups defeated the large ones?" God is with those who exercise patience. 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 the will of God they defeated them, and David killed Goliath, and God gave him kingship and wisdom, and taught him whatsoever He pleased. If God did not make men deter one another this earth would indeed be depraved. But gracious is God to the people of the world. 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 ۞ Of these Messengers (whom We sent for the guidance of mankind), We raised some above the others in rank. Among them was one with whom Allah Himself had direct talks. There were others whom He raised high in rank in other ways. Likewise We gave clear signs to Jesus, son of Mary, and supported him with the Holy Spirit. Had Allah so willed the people who had seen clear signs would not have fought against one another after the Prophets. But (it was not Allah's will to prevent people forcibly from differences: so) they disagreed; then some of them accepted the Truth and others rejected it. If Allah had so willed they would have never fought against one another, but Allah does whatever He pleases (to fulfil His designs. 253