Acts 13:47 For so hath the Lord commanded us, saying, I have set thee to be a light of the Gentiles, that thou shouldest be for salvation unto the ends of the earth.
John 15:8 Herein is my Father glorified, that ye bear much fruit; so shall ye be my disciples
Matthew 5:14-16 Ye are the light of the world. A city that is set on an hill cannot be hid. Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house.Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.