'Light' in the Bible

And as he journeyed, it came to pass that he drew nigh unto Damascus: and suddenly there shone round about him a light out of heaven:

And behold, an angel of the Lord stood by him, and a light shined in the cell: and he smote Peter on the side, and awoke him, saying, Rise up quickly. And his chains fell off from his hands.

For so hath the Lord commanded us,'saying , I have set thee for a light of the Gentiles, That thou shouldest be for salvation unto the uttermost part of the earth.

And it came to pass, that, as I made my journey, and drew nigh unto Damascus, about noon, suddenly there shone from heaven a great light round about me.

And they that were with me beheld indeed the light, but they heard not the voice of him that spake to me.

And when I could not see for the glory of that light, being led by the hand of them that were with me I came into Damascus.

at midday, O king, I saw on the way a light from heaven, above the brightness of the sun, shining round about me and them that journeyed with me.

to open their eyes, that they may turn from darkness to light and from the power of Satan unto God, that they may receive remission of sins and an inheritance among them that are sanctified by faith in me.

how that the Christ must suffer, and how that he first by the resurrection of the dead should proclaim light both to the people and to the Gentiles.