Eyes can not bear the vision of God. He tells us in the Quran:

“Vision cannot grasp Him, but His Grasp is over all vision.” (Quran 6:103)

Moses, to whom God spoke and gave great miracles, was chosen by God to be His Prophet. It is said that he thought that, since God used to speak to him, he might be able to actually see God. The story is in the Quran, where God tells us what happened:

“And when Moses arrived at Our appointed time and his Lord spoke to him, he said, ‘My Lord, show me (Yourself) that I may look at You.’ (God) said, ‘You will not see Me, but look at the mountain; if it should remain in place, then you will see Me.’ But when his Lord appeared to the mountain, He rendered it level, and Moses fell unconscious. And when he awoke, he said, ‘Exalted are You! I have repented to You, and I am the first of the believers.’” (Quran 7:143)



God made it clear that no-one, including the great prophet Moses, can bear the sight of the divine, for God is too great to be grasped by human eyes in this life. According to the Quran, Moses realized his request was in error; therefore, he sought forgiveness from God for having asked.