Matthew 5:14-15 (KJV) 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.
The people described in vs 3-12 are a new creation of God to give spiritual light on earth. Christ was that light while He was on earth ( John 8:12; 9:5 ). Now His followers are “children of the light” and must shine forth with His light which is in them.
God gives us spiritual gifts of all shapes and sizes. He has created within each of us a precious light that reflects His great love. Often, we become shy about stepping out into the world to let our light shine. Let us remember that the Holy Spirit fills our hearts; He provides wisdom and guidance. He will open opportunities for us to use our unique gift for the works of the Lord.
2 Corinthians 5:17 (KJV) Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.