(The one who saw this happen has told about it. He told about it so that you also can believe. The things he says are true. He knows that he tells the truth.)
Everyone says good things about Demetrius, and the truth agrees with what they say. Also, we say good about him. And you know that what we say is true.
Jesus Christ is the one who came. He came with water and with blood. He did not come by water only. No, Jesus came by both water and blood. And the Spirit tells us that this is true. The Spirit is the truth.