No Biblical revelation states that Jesus told his disciples to write a book, and that that would be the sole source of revealed knowledge.
“No Biblical revelation states that Jesus told his disciples to write a book, and that that would be the sole source of revealed knowledge.”
As it turns out, there are two other members of the Godhead that did.
The appeal to the written word is well attested to in Scripture.
1Inasmuch as many have undertaken to compile an account of the things accomplished among us, 2just as they were handed down to us by those who from the beginning were eyewitnesses and servants of the word, 3it seemed fitting for me as well, having investigated everything carefully from the beginning, to write it out for you in consecutive order, most excellent Theophilus; 4so that you may know the exact truth about the things you have been taught. Luke 1:1-4 NASB
1What was from the beginning, what we have heard, what we have seen with our eyes, what we have looked at and touched with our hands, concerning the Word of Life— 2and the life was manifested, and we have seen and testify and proclaim to you the eternal life, which was with the Father and was manifested to us— 3what we have seen and heard we proclaim to you also, so that you too may have fellowship with us; and indeed our fellowship is with the Father, and with His Son Jesus Christ. 4These things we write, so that our joy may be made complete. 1 John 1:1-4 NASB
3Beloved, while I was making every effort to write you about our common salvation, I felt the necessity to write to you appealing that you contend earnestly for the faith which was once for all handed down to the saints. 4For certain persons have crept in unnoticed, those who were long beforehand marked out for this condemnation, ungodly persons who turn the grace of our God into licentiousness and deny our only Master and Lord, Jesus Christ. Jude 1:3-4 NASB
Lots of Biblical revelation states that Jesus told his disciples to beware of TRADITION.