But his soul had retained its energy, his heart the desire not to cease pleading to the Ruler of Battles.
Moses was unwilling to remain inactive during this conflict and his weapon was prayer.
Like a child who will not cease urging its mother until she grants what it unselfishly beseeches for its brothers and sisters, he clung imploring to the Omnipotent One, who had hitherto proved Himself a father to him and to his people and wonderfully preserved them from the greatest perils.
But his physical strength was exhausted, so he summoned his companions who pushed forward a rock on which he seated himself, in order to assail the heart of the Most High with fresh prayers.
There he sat and though his wearied limbs refused their service, his soul was obedient and rose with all its fire to the Ruler of the destinies of men.
But his arms grew more and more paralysed, and at last fell as if weighted with lead; for years it had become a necessity to him to stretch them heavenward when he appealed with all his fervor to God on high.
This his companions knew, and they fancied they perceived that whenever the great leader's hands fell the sons of Amalek gained a fresh advantage.
Therefore they eagerly supported his arms, one at the right side, the other at the left, and though the mighty man could no longer lift his voice in intelligible words, though his giant frame reeled to and fro, and though more than once it seemed to him as if the stone which supported him, the valley and the whole earth rocked, still his hands and eyes remained uplifted.

Not a moment did he cease to call upon the Most High till suddenly loud shouts of victory, which echoed clearly from the rocky sides of the valley, rose from the direction of the camp.
Joshua had again appeared on the battle-field and, at the head of his warriors, rushed with resistless energy upon the foe.
The battle now assumed a new aspect.
The result was still uncertain, and Moses could not cease uplifting his heart and arms to heaven, but at last, at last this long final struggle came to an end.

The ranks of the Amalekites wavered and finally, scattered and disheartened, dashed toward the southern entrance of the valley whence they had come.
There also cries were heard and from a thousand lips rang the glad shout: "Jehovah our standard! Victory!" and again "Victory!" Then the man of God removed his arms from the supporting shoulders of his companions, swung them aloft freely and with renewed and wonderfully invigorated strength shouted: "I thank Thee, my God and my Lord! Jehovah our standard! The people are saved!" Then darkness veiled the eyes of the exhausted man.

But a little later he again opened them and saw Ephraim, with the slingers and bowmen, attack the body of Amalekites at the southern entrance of the valley, while Joshua drove the main army of the sons of the desert toward their retreating comrades.
Joshua had heard through some captives of a ravine which enabled good climbers to reach a defile which led to the southern end of the battle-field; and Ephraim, obedient to his command, had gone with the slingers and bowmen along this difficult path to assail in the rear the last band of foemen who were still capable of offering resistance.
Pressed, harassed from two sides, and disheartened, the sons of Amalek gave up the conflict and now the Hebrews beheld how these sons of the desert, who had grown up in this mountain region, understood how to use their feet; for at a sign from their leader they spurred the dromedaries and flew away like leaves blown by the wind.

Rough mountain heights which seemed inaccessible to human beings they scaled on their hands and feet like nimble lizards; many others escaped through the ravine which the captured slaves had betrayed to Joshua..