The end of the world:

The Quran teaches us that the world will end when God simply “comes”, since our world cannot stand the presence of God.

Al –Fajr 22

As your Lord comes, together with the angels in row after row.

Al –Araaf 143,144

When Moses came to our audience, and his lord spoke to him, he said, “My Lord, let me look at You and see You, “He said, “You cannot see Me, but look at the mountain, if it stays in its place, then you can see Me.” Then, when his Lord manifested Himself to the mountain, He causes it to crumble, and Moses fell unconscious. When he came to, he said, “Glory be to you, I repent to You, and I am the first to believe.”

God said, “O Moses, I have chosen you over the rest of the people with My messages and by speaking with you. You should take that I bestowed upon you, and be appreciative.”