Though it's not related to this thread still .....
Per Quran, Moses wasn't strong enough to stand God's slight show of appearance. He fainted.
"When Musa arrived at our appointed time and his Lord spoke to him, he said: "O Lord, reveal Yourself to me that I may behold You." "You cannot behold Me," He said. "But look at the mountain: If it remains firm in its place you may then behold Me." But when his Lord appeared on the mountain, making it crumble to a heap of dust, and Musa fell unconscious. When he recovered, he said: "All glory to You. I turn to You in repentance, and I am the first to believe." (7. Al-Araf: 143)
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The account of first narration to Moses as given by Quran, slightly differs from Bible,
"And when Moses had completed the term and was traveling with his family, he perceived from the direction of the mount a fire. He said to his family, "Stay here; indeed, I have perceived a fire. Perhaps I will bring you from there [some] information or burning wood from the fire that you may warm yourselves." 28:29
"But when he came to it, he was called from the right side of the valley in a blessed spot - from the tree, "O Moses, indeed I am Allah, Lord of the worlds." 28:30