The prophet Ezekiel described God in Ezekiel 8:2 as having "the likeness as the appearance of a man...as the color of amber, as the appearance of fire round about within it, from the appearance of his loins even upward, and from the appearance of his loins even downward...as it were the appearance of fire, and it had brightness round about".
When Moses was with the LORD forty days and forty nights, the brightness of the glory of God was shining on Moses' face sending out rays of light.
Exodus 34:28-30
28 And he was there with the LORD forty days and forty nights; he did neither eat bread, nor drink water. And he wrote upon the tables the words of the covenant, the ten commandments.
29 And it came to pass, when Moses came down from mount Sinai with the two tables of testimony in Moses' hand, when he came down from the mount, that Moses knew not that the skin of his face shone while he talked with him.
30 And when Aaron and all the children of Israel saw Moses, behold, the skin of his face shone; and they were afraid to come nigh him.
The three disciples, Peter, James, and John his brother experienced the glory of God during the transfiguration of Jesus Christ. The brightness of Jesus Christ was overshadowed by a bright cloud having the voice of the glory of God in it.
Matthew 17:1-8
1 And after six days Jesus taketh Peter, James, and John his brother, and bringeth them up into an high mountain apart,
2 And was transfigured before them: and his face did shine as the sun, and his raiment was white as the light.
3 And, behold, there appeared unto them Moses and Elias talking with him.
4 Then answered Peter, and said unto Jesus, Lord, it is good for us to be here: if thou wilt, let us make here three tabernacles; one for thee, and one for Moses, and one for Elias.
5 While he yet spoke, behold, a bright cloud overshadowed them: and behold a voice out of the cloud, which said, This is my beloved Son, in whom I am well pleased; hear ye him.
6 And when the disciples heard it, they fell on their face, and were sore afraid.
7 And Jesus came and touched them, and said, Arise, and be not afraid.
8 And when they had lifted up their eyes, they saw no man, save Jesus only.