50. If something good happens to you, it upsets them; and if a calamity befalls you, they say, “We took our precautions in advance,” and they depart, happy.
51. Say, “Nothing will happen to us except what God has ordained for us; He is our Protector.” In God let the faithful put their trust.
52. Say, “Are you expecting for us anything other than one of the two excellences? As for us: we are expecting that God will afflict you with a punishment from Himself, or at our hands. So wait, we are waiting with you.”
53. Say, “Whether you spend willingly or unwillingly, it will not be accepted from you. You are evil people.”
54. What prevents the acceptance of their contributions is nothing but the fact that they disbelieved in God and His Messenger, and that they do not approach the prayer except lazily, and that they do not spend except grudgingly.
55. Let neither their possessions nor their children impress you. God intends to torment them through them in this worldly life, and that their souls depart while they are disbelievers.
56. They swear by God that they are of you. But they are not of you. They are divisive people.
57. Were they to find a shelter, or a cave, or a hideout, they would go to it, rushing.
58. And among them are those who criticize you in regard to charities. If they are given some of it, they become pleased; but if they are not given any, they grow resentful.
59. If only they were content with what God and His Messenger have given them, and said, “God is sufficient for us; God will give us of His bounty, and so will His Messenger; to God we eagerly turn.”
60. Charities are for the poor, and the destitute, and those who administer them, and for reconciling hearts, and for freeing slaves, and for those in debt, and in the path of God, and for the traveler in need-an obligation from God. God is All-Knowing, Most Wise.
Gabriel is telling Muhammad what to say to the people. There is a notion that Muhammad has been telling the people that they needed to pray, stop living in excess and donate their money to those who really need it and they have only half heartedly agreed to do this. Gabriel is chastising them and telling Muhammad to warn them, that God sees their laziness and disbelief.
The faithful have no fear and they believe and trust in the Quran revelations. The ones who don’t are the ones Muhammad is told to tell them they are “evil”. Not to solidify a trait in them, but to make them feel guilty of what they have done and are doing so that they may change.
In Line 58-60 is where we are shown Muhammad is criticized for his donations to charities and speeches about the importance of giving up wealth for others. Some do not see it and mock him. Gabriel tells Muhammad that he needs to teach the people that charity and helping of those in more desolate situations than you is important. It is an obligation from God and required of the believers.
One of my favorite childhood books was “The Little Prince”