Now all the people witnessed the thunderings, the lightning flashes, the sound of the trumpet, and the mountain smoking; and when the people saw it, they trembled and stood afar off. Then they said to Moses, “You speak with us, and we will hear; but let not God speak with us, lest we die.” Exodus 20:18-19

This Bible verse gives you a picture of how God revealed Himself to the Israelites on the top of Mount Sinai. The reaction from the people was they did not want to be close to God or hear His Words for fear they would die. This is how terrifying the glory of God is when you come into His presence.
No one can come into personal contact with God because He is holy and pure and will not be tainted by sin.
God may allow you to come near Him so you can witness His glory and power. If this happens, you will experience a greatness in God unlike anything on the earth. It is like a thunder bolt and penetrates to the essence of your heart, soul, and spirit. You see the purity of God and your corrupt inner self.
God is omnipotent and no one can compare to Him. When you come face to face with the living God, you will never doubt His greatness and your life will never be the same.
Don’t try to touch His glory! The work is done down here and not up on His Holy mountain. Just worship Him and give Him all the glory!