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 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 Consequently, by Allah's grace, they routed the unbelievers, and David killed Goliath; and Allah gave him kingship and wisdom and taught him whatever other things He willed. And if Allah had not been repelling one set of people by means of another, the earth would have been filled with chaos. But Allah is bountiful to the world (and so repels chaos in this way). 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 ۞ 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