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 When they advanced to meet Goliath and his forces, they prayed: "Our Lord! Pour out constancy on us and make our steps firm: Help us against those that reject faith." 250 They defeated their enemy through God's will. David slew Goliath and God granted David the kingdom and wisdom and also taught him whatever He wanted. Had God not made one group of people repel the other, the earth would have become full of corruption, but God is generous to His creatures. 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