'Light' in the Bible

And that having the eyes of your heart full of light, you may have knowledge of what is the hope of his purpose, what is the wealth of the glory of his heritage in the saints,

For you at one time were dark, but now are light in the Lord: let your behaviour be that of children of light

(Because the fruit of the light is in all righteousness and in everything which is good and true),

But all things, when their true quality is seen, are made clear by the light: because everything which is made clear is light.

For this reason he says, Be awake, you who are sleeping, and come up from among the dead, and Christ will be your light.