Exodus 24:15-17

15Then Moses went up on the mountain, and athe cloud covered the mountain. 16 bThe glory of the Lord dwelt on Mount Sinai, and the cloud covered it six days. And on the seventh day he called to Moses out of the midst of the cloud. 17Now the appearance of the glory of the Lord was like a cdevouring fire on the top of the mountain in the sight of the people of Israel.
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