11 From the very first day, we were there, taking it all in - we heard it with our own ears, saw it with our own eyes, verified it with our own hands. 2 The Word of Life appeared right before our eyes; we saw it happen! And now we're telling you in most sober prose that what we witnessed was, incredibly, this: The infinite Life of God himself took shape before us. 3 We saw it, we heard it, and now we're telling you so you can experience it along with us, this experience of communion with the Father and his Son, Jesus Christ. 4 Our motive for writing is simply this: We want you to enjoy this, too. Your joy will double our joy!
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.
8 If we claim that we're free of sin, we're only fooling ourselves. A claim like that is errant nonsense. 9 On the other hand, if we admit our sins - make a clean breast of them - he won't let us down; he'll be true to himself. He'll forgive our sins and purge us of all wrongdoing. 10 If we claim that we've never sinned, we out-and-out contradict God - make a liar out of him. A claim like that only shows off our ignorance of God.