John 21:24

“This is the disciple which testifieth of these things, etc.] Recorded in this chapter concerning the appearance of Christ to his disciples at the sea of Tiberias, and what were done by him in their presence, what passed between them; particularly the conversation he had with Peter, both concerning himself, and the disciple John: and also, of all things that are written in this whole Gospel. These are testified to be true by this very disciple John, concerning whom the above report went upon a mistaken sense of Christ’s words, and who himself wrote these things; all that is contained in this book, as well as the particulars relating to this conversation of Christ with Peter: and we know that…”

“FINAL CLOSE OF THIS GOSPEL. (Joh 21:24-25) This is the disciple which testifieth of these things, and wrote these things--thus identifying the author of this book with all that it says of this disciple. we know that his testimony is true--(Compare Joh 19:35).”

“This is the disciple ... - This proves that the beloved disciple was John. We know - That is, it is known; it is universally admitted. It was so decidedly his character that he always declared the truth, that it had become known and was unquestioned, so that he himself might appeal to the universal testimony in his behalf. In this case, therefore, we have the testimony of a man whose character for nearly a century was that of a man of truth - so much so that it had become, in a manner, proverbial, and was put beyond a doubt. It is impossible to believe that such a man would sit down deliberately to impose on mankind, or to write a book which was false; and if not, then this book is true, and…”

“This is the disciple who testifieth - Being still alive after he had wrote. And we know that his testimony is true - The Church added these words to St. John's, Gospel, as Tertius did those to St. Paul's Epistle to the Romans, Rom 16:22. John 21:25”

“21:24 This disciple is the one who testifies . . . and has recorded: John’s Gospel is anchored in his personal experiences. It is not a story written from hearsay or speculation, but from the remembrance of a man who spent life-changing years with Jesus and recalled, with the help of the Holy Spirit (14:26), what Jesus said and did. • we know: This account of the life of Christ was not speculation or weak reminiscence. Rather, it was based on the confident knowledge of reliable eyewitness accounts.”

“we know: Joh 19:35; Jo1 1:1, Jo1 1:2, Jo1 5:6; Jo3 1:12 John 21:25”