Jesus spoke to the people once more and said, “I Am The Light of the World. If you follow Me, you won’t have to walk in darkness, because you will have The Light that leads to Life.”
John 8:12 (NLT)

“Make use of The Light while there is still time; then you will become light bearers.” After saying these things, Jesus went away and was hidden from them.
John 12:36 (TLB)

The Lord gave us a work to do. He said, ‘You are to be a light to the people who are not Jews. You are to preach so that men over all the earth can be saved from the punishment of their sins.'”
Acts 13:47 (NLV)

“You are the light of (Christ to) the world. a city set on a hill cannot be hidden; nor does anyone light a lamp and put it under a basket, but on a lampstand, and it gives light to all who are in the house. Let your light shine before men in such a way that they may see your good deeds and moral excellence, and (recognize and honor and) glorify your Father who is in heaven.
Matthew 5:14-16 (AMP)