but whoever drinks of the water that I will give him will never thirst again; but the water that I will give him will become in him a well of water springing up to eternal life."

 (iii) To do the will of God is the only way to power. When we go our own way, we have nothing to call on but our own power, and therefore collapse is inevitable. When we go God's way, we go in his power, and therefore victory is secure. 