Do those in whose hearts is a disease think that Allah will not expose the impurity of their hearts? If We will, We can show them to you and then you may recognize them by their faces. But you will certainly know them from the manner of their speech. Allah is fully aware of all your actions. We shall certainly put you to the test in order to appraise your state and to see who among you are struggling strenuously and enduring patiently. Those who disbelieved and hindered (others) from Allah's way and disputed with the Messenger, after the Right Way had become clear to them, can in no way harm Allah, but Allah indeed will render all their works vain.39 O you who have believed, obey Allah and obey the Messenger and let not your works end in futility.40 As for those who have disbelieved, and hindered (others) from Allah's Way and have died disbelieving, Allah will never pardon them. Therefore, do not be faint-hearted, and do not beg for peace,41 for you will surely gain the upper hand. Allah is with you and will never let your works be wasted. The life of this world is only a sport and a pastime.42 If you believe and follow the way of piety, Allah will give you your rewards, and will not ask of you your possessions.43 If ever He asks of you your possessions, and demands all of them, you would be niggardly, and He would bring your malice out.44 Look, you are being called upon to expend in Allah's Way. Yet some of you are being stingy, whereas the one who is stingy is, in fact, being stingy only to himself. Allah is Self-Sufficient. It is you who are the needy. If you turn away, Allah will replace you by another people, and they will not be like you.