We still have a mandate to shine the light of God to men.
Matthew 5:16 Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.
God shines in our hearts to give the light of knowledge of Jesus Christ.
2 Corinthians 4:6 For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ.
Without this light, men are blind to God.
2 Corinthians 4:4 In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
Let the church shine in this present darkness!