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 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 verses of Allah which We recite to you, [O Muhammad], in truth. And indeed, you are from among the messengers. 252 ۞ Some of these apostles have We endowed more highly than others: among them were such as were spoken to by God [Himself,] and some He has raised yet higher.' And We vouchsafed unto Jesus, the son of Mary, all evidence of the truth, and strengthened him with holy inspiration. And if God had so willed, they who succeeded those [apostles] would not have contended with one another after all evidence of the truth had come to them; but [as it was,] they did take to divergent views, and some of them attained to faith, while some of them came to deny the truth. Yet if God had so willed, they would not have contended with one another: but God does whatever He wills. 253