We're going to need an attestation from another witness to confirm if the events happened as you claim.
Even in the case of the two more important epistles, i Peter and James, we have to add the qualification " if genuine," but rather perhaps because of the persistence with which they are challenged than because of inherent defect of attestation.
But on his next visit to England in 1619 he brought with him an attestation to his orthodoxy and high professional standing, signed by the lord deputy and the members of the privy council, which, together with his own demeanour in a private conference with the king, so influenced the latter that he nominated Usher to the vacant see of Meath, of which he was consecrated bishop in 1621.
Therefore, quoting different books of the Bible provides independent attestation for a specific issue or doctrine.
An attestation made under this section shall be in accordance with standards for attestation made under this section shall be in accordance with standards for attestation engagements issued or adopted by the Board.