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 And when they came face to face with Goliath and his forces, they prayed: "O our Sustainer! Shower us with patience in adversity, and make firm our steps, and succour us against the people who deny the truth!" 250 Then they vanquished them by the leave of Allah, and Da'ud slew Jalut, and Allah vouchsafed him dominion, and wisdom and taught him of that which He willed. And, if not for Allah's repelling people, some of them by means of others, the earth surely were corrupted; but Allah is Gracious unto the worlds. 251 These are the verses of Allah. We recite (them) to you in truth, for you (Prophet Muhammad) are one of the Messengers. 252 ۞ Of these Messengers, We have preferred some above others. To some Allah spoke; and some He raised in rank. We gave (Prophet) Jesus, the son of Mary, clear signs and strengthened him with the Spirit of Purity (Gabriel). Had Allah willed, those who succeeded them would not have fought against one another after the clear verses came to them. But they differed among themselves; some believed, and others disbelieved. Yet had Allah willed, they would not have fought against one another. Allah does whatever He will. 253