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 migrate, He will afflict you with a painful punishment and bring other people in your stead and you will not be able to harm Him in the least; and Allah is Able to do all things. 39 If you do not support him [Muhammad], know that God did support him when those who denied the truth expelled him when the two of them were in the cave, he [Muhammad] told his companion, "Do not worry; for God is with us." So God sent His tranquillity down on him and aided him with forces invisible to you and placed the word of those who disbelieved lowest, while God's word remained supreme. God is powerful and wise. 40 Go ye forth, (whether equipped) lightly or heavily, and strive and struggle, with your goods and your persons, in the cause of Allah. That is best for you, if ye (but) knew. 41 Had the gain been immediate or the journey shorter, they (hypocrites) would certainly have followed you, (Muhammad), but it was too far for them. They will swear by God, "Had we had the ability, we would certainly have marched with you." They destroy only themselves and God knows that they are lying. 42