What has happened to you, O believers, that when you are asked to set out in the cause of God your feet begin to drag? Do you find the life of the world so pleasing that you forget the life to come? Yet the profit of the life of this world is but meagre as compared to the life to come. 38 If you do not go forth, He will punish you sternly and replace you by other people. You will not harm Him in the least. God has power over all things. 39 If ye succour him not, then surely Allah hath succoured him when these who disbelieved drave him, the second of the two, when the twain were in a cave, and when he said unto his companion: grieve not, verily Allah is with us. Then Allah sent down His calm upon him and aided him with hosts whom ye saw not, and made the word of those who disbelieved nethermost, and the word of Allah! that is the uppermost. And Allah is Mighty, Wise. 40 March forth, whether you are light (being healthy, young and wealthy) or heavy (being ill, old and poor), strive hard with your wealth and your lives in the Cause of Allah. This is better for you, if you but knew. 41 (O Prophet), had the gain been close at hand, and easy the journey, they would surely have followed you; but hard was the journey and long the going. Even then they swear by God (and say): "If we had the strength we would surely have gone out with you." They are only ruining themselves, for God is aware they lie. 42