“Let your light shine before men in such a way that they may see your good works, and glorify your Father who is heaven.” Matthew 5:16 (NASB)
This constitutes a command. We are God’s representatives in the world. We Are not our own. We are bought with a price [“For you have been bought with a price: therefore glorify God in your body” 1 Cor. 6:22]. We are lights because we have been lighted by the Light. Therefore we are commanded to let the light within us shine forth.
God has never saved a person that He did not have a ministry for that person. He does not call all men to preach, teach, or go to mission fields; but we are saved to serve. God puts within us a light to shine, that we may light the way for others.
If we are saved, we are saved to witness for Jesus, to let our light shine “before men.”