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 And when they went forth to [face] Goliath and his soldiers, they said, "Our Lord, pour upon us patience and plant firmly our feet and give us victory over the disbelieving people." 250 And thereupon, by God's leave, they routed them. And David slew Goliath; and God bestowed upon him dominion, and wisdom, and imparted to him the knowledge of whatever He willed. And if God had not enabled people to defend themselves against one another, corruption would surely overwhelm the earth: but God is limitless in His bounty unto all 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 ۞ These apostles: We have preferred some of them above some others: of them are some unto whom Allah spake, and some He raised many degrees. And We vouchsafed unto Isa, son of Maryam, the evidences, and We aided him with the holy spirit; and had Allah so willed those who came after them had not fought among themselves after the evidences had come unto them but they differed; then of them some believed and of them some disbelieved. And had Allah so willed, they had not fought among themselves, but Allah doth whatsoever He intendeth. 253