1 John 1:5-7

5 This, in essence, is the message we heard from Christ and are passing on to you: God is light, pure light; there's not a trace of darkness in him.

6 If we claim that we experience a shared life with him and continue to stumble around in the dark, we're obviously lying through our teeth - we're not living what we claim.

7 But if we walk in the light, God himself being the light, we also experience a shared life with one another, as the sacrificed blood of Jesus, God's Son, purges all our sin.