NET
12 Demetrius has been testified to by all, even by the truth itself. We also testify to him, and you know that our testimony is true.
Darby
12 Demetrius has witness borne to him by all, and by the truth itself; and *we* also bear witness, and thou knowest that our witness is true.
KJV
12 Demetrius hath good report of all [men], and of the truth itself: yea, and we [also] bear record; and ye know that our record is true.