Exodus 24:17 — And the sight of the glory of the Lord was like devouring fire on the top of the mount in the eyes of the children of Israel.

Our eyes play strange tricks. Different people look at the same thing and see different things.
Moses looked at the cloud as it covered the mountain for six days. He saw the glory if God. On the seventh day God called to Moses, and spoke to him from the cloud. Moses stayed on the mountain for forty days. Meanwhile, the Israelites … who had been too afraid to climb the mountain … the glorious cloud looked like a raging fire consuming the top of the mountain.
The Israelites looked on God’s holy mountain, and saw only a threat. Moses saw his God.
Jump forward fourteen or fifteen hundred years. Jesus is walking in the villages, towns and cities of Israel. His disciples looked at Him and saw the Son of God. Some people looked at Him and saw a good man — a teacher, maybe even a prophet.
The Scribes and Pharisees looked at Jesus and saw a blasphemer, a trouble maker, a threat.
The Israelites looked on God’s Son, and saw only a threat. John the Baptist saw his Messiah.
The “seeing” motif is all through the Bible. The Word of The Lord told Ezekiel, “Son of man, thou dwellest in the midst of a rebellious house, which have eyes to see, and see not; they have ears to hear, and hear not: for they are a rebellious house” (Ezekiel 12:2). Jesus healed a blind man. Saul lost his sight and Paul regained it.
Jesus knew the truth, and said it. “But though he had done so many miracles before them, yet they believed not on him: that the saying of Isaiah the prophet might be fulfilled, which he spake, Lord, who hath believed our report? and to whom hath the arm of the Lord been revealed? Therefore they could not believe, because that Isaiah said again, He hath blinded their eyes, and hardened their heart; that they should not see with their eyes, nor understand with their heart, and be converted, and I should heal them.” (John 12:37-40).
It’s the same today. “There’s none so blind as those who will not see”. If you’re like me, you’ve had the experience of witnessing to someone, and showing them the truth very clearly, and being rejected. You know people who willfully ignore moral truth. They cannot see the glory of God, or His Son, because they will not. They see only the threat to their way of doing things, their way of life … What can you see?