'In the Light' in the Bible

Therefore whatsoever ye have said in darkness shall be heard in the light: and what ye have spoken in the ear in closets shall be proclaimed on the house-tops.

While ye have the light, believe in the light, that ye may be the children of light. These things spake Jesus, and then went away, and concealed himself from them.

but if we walk in the light, as He is in the light, we have communion with one another, and the blood of Jesus Christ his Son cleanseth us from all sin.

Now he that saith he is in the light, and hateth his brother, is still in darkness:

whereas, he that loveth his brother, abideth in the light, and is in no danger of stumbling.

And the nations of those that are saved shall walk in the light of it: and the kings of the earth bring their glory and their honor into it.