The Thunder - 13:1
A.L.M.R. These (letters) are the miracles of the Book. That which has been sent down to you from your Lord is the truth, but most of the people do not believe.
Why does God show His miracles?
The Night Journey/17:59
The fact that those before denied them did not prevent Us from sending signs. For example, We had clearly given the camel to Thamud. But they wronged him. We send the signs only as a warning.
The Cow/2:118
"The ignorant said, "Should not Allah have spoken to us or a sign (miracle) have come to us?"Those before them had spoken like them. Their minds are alike. We show the miracles to those who believe."
The Cow/2:260
"Abraham said, "My Lord, show me how You raise the dead."He said, "Or do you not believe?"He said, "Yes, but to strengthen my heart.""Take four birds and examine them thoroughly (recognize their different characteristics). Then place a piece of them on each mountain. Then call them. They will come to you immediately. Know that Allah is Mighty, Wise."
The Table Spread/5:112
"The Apostles said, "Jesus son of Mary, may your Lord give us a feast from heaven."He said, "Honor Allah if you believe."
The Table Spread/5:113
We ask that we may eat of it, and that our hearts may be calmed, and that we may know that you tell us the truth, and that we may bear witness to it.
The Table Spread/5:114
"Jesus son of Mary: "Our God, our Lord, send down to us a banquet from heaven, so that it may be a feast for each of us and for all of us, and a proof from You. Provide for us. You are the best provider."
The Table Spread/5:115
"Allah said: "I will send it down to you,"He said: "Whoever disbelieves after that, I will punish him with a torment which I have never given to anyone."
The Cow/2:259
"Or like that person (did you not notice). He comes to a ruined town and says, "How can Allah bring it back to life after its death?"So Allah resurrected him after he had been dead for a hundred years. He said, "How long did you stay here?"He said, "I stayed here for a day or part of a day.""No, you stayed a hundred years. Look at your food and drink, still intact. Look at your donkey. We have made you a proof for the people. Behold the bones, how We put them on top of each other and then clothe them with flesh."When the situation became clear to him, he said, "Now I know that Allah is all-powerful."
The Heights/7:143
"When Moses came to us at the appointed time and his Lord spoke to him, he said, "My Lord, appear to me and let me look at you. "You cannot see me. But look at this mountain; if it stands still, then you will see me."When his Lord appeared to the mountain, He shattered it, and Moses fell unconscious. When he came to his senses, he said, "You are great, to You I turn, and I am the foremost of the believers."
The Cow/2:73
"We said, "Strike him (the murdered one) with a part (of the heifer)."This is how Allah raises the dead to life and shows His signs (miracles) so that you may reflect."
The One Wrapping Himself Up/74:31
"We have appointed only angels as guardians of the Fire, and We have made their number (nineteen) a trial for the disbelievers, to convince those who have been given the Book, to strengthen the faith of those who believe, to remove the doubts of those who have been given the Book and those who believe, and for those in whose hearts is a disease and the disbelievers to say, "What does Allah mean by this example?"So Allah leads astray whom He wills and guides whom He wills. None knows the armies of your Lord except Himself. This (number) is a message to the people."