O believers, what is amiss with you, that when it is said to you, 'Go forth in the way of God,' you sink down heavily to the ground? Are you so content with this present life, rather than the world to come? Yet the enjoyment of this present life, compared with the world to come, is a little thing. 38 If you do not march forth, Allah will chastise you grievously and will replace you by another people, while you will in no way be able to harm Him. Allah has power over everything. 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