It is absolutely false to say that any persons, individual in heaven and in earth that will take the authority of Christ.
Truth is absolute. Jesus says He is the Truth John 14:6, thus His words is truth and His teaching is of truth, This absolute truth is already revealed and is recorded in the scripture of truth. So, the Bible is absolutely the written or recorded truth. In that saying, anyone who wishes to oppose to the recorded truth has partial truth, and partial truth is not a truth at all. One must only confined to be taught that truth is found only in the 4 gospels. Real believer does not discount the reality of obeying Christ, following Christ or embracing Christ since we have the mind of Christ (1 Cor. 2:16).
Following Jesus every day is the goal of every believer but Jesus words were not only recorded in the 4 Gospels in the book of Matthew, Mark, Luke and John. It is also recorded in the historical book of Acts, in the Epistles, and in the prophetic Book of Revelation. The records sets it true and one cannot be against the truth otherwise one is not of the truth.
Galatians 4:16 AmI therefore become your enemy, because I tell you the truth?
Acts 9:5 And he said, Who art thou, Lord? And the Lord said, I am Jesus whom thou persecutest: it is hard for thee to kick against the pricks.
Acts 9:6 And he trembling and astonished said, Lord, what wilt thou have me to do? And the Lord said unto him, Arise, and go into the city, and it shall be told thee what thou must do.
1Co 11:24 — And when he had given thanks, he brake it, and said, Take, eat:this is my body, which is broken for you: this do in remembrance of me.
2Co 12:9 — And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me.
Revelation 1:8 I am Alpha and Omega, the beginning and the ending, saith the Lord, which is, and which was, and which is to come, the Almighty.