THE FORMATION OF THE CANON: THE NEW TESTAMENT

"The determination of the Canon of the New Testament was not the result of any pronouncement, either by an official of the Church or by an ecclesiastical body. Rather, the Canon was determined by the use of these books throughout all of the Churches during the first and second centuries. The establishment of the Canon was the process by which formal recognition was given to the writings of Scripture already recognized as authoritative."

Link: https://coursebible.com/christian-evidences/the-formation-of-the-canon-the-new-testament