1 ^1-4 We are writing to you about something which has always existed yet which we ourselves actually saw and heard: something which we had an opportunity to observe closely and even to hold in our hands, and yet, as we know now, was something of the very Word of life himself! For it was life which appeared before us: we saw it, we are eye-witnesses of it, and are now writing to you about it. It was the very life of all ages, the life that has always existed with the Father, which actually became visible in person to us mortal men. We repeat, we really saw and heard what we are now writing to you about. We want you to be with us in this—in this fellowship with the Father, and Jesus Christ his Son. We must write and tell you about it, because the more that fellowship extends the greater the joy it brings to us who are already in it.

Experience of living “in the light”

^5-10 Here, then, is the message which we heard from him, and now proclaim to you: GOD IS LIGHT and no shadow of darkness can exist in him. Consequently, if we were to say that we enjoyed fellowship with him and still went on living in darkness, we should be both telling and living a lie. But if we really are living in the same light in which he eternally exists, then we have true fellowship with each other, and the blood which his Son shed for us keeps us clean from all sin. If we refuse to admit that we are sinners, then we live in a world of illusion and truth becomes a stranger to us. But if we freely admit that we have sinned, we find God utterly reliable and straightforward—he forgives our sins and makes us thoroughly clean from all that is evil. For if we take up the attitude “we have not sinned”, we flatly deny God’s diagnosis of our condition and cut ourselves off from what he has to say to us.