This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.
All Commentaries on 1 John 1:5 Go To 1 John 1
Tertullian of Carthage
AD 220
Draw whatever (veil of) darkness you please over your deeds, "God is light.".
Nay, but this whole world is the one house of all; in which world it is more the heathen, who is found in darkness, whom the grace of God enlightens, than the Christian, who is already in God's light.