Is there more for us God has yet to reveal?

The Bible was compiled after the time of the individuals named "John" in the Bible, so neither John the Baptist nor the Apostle John could have known about the entire "Holy Bible" as a completed collection of books. However, John the Apostle, as the author of the Gospel of Johnand the Book of Revelation, would have been familiar with the Hebrew Scriptures (Old Testament), and likely knew of the Gospels of Matthew, Mark, and Luke, which were written before his own work. 

We could also add that st Paul who wrote most of the new testament letters had no idea that those letters would one-day become considered the word of God

See last post

1 Corinthians 4:5

Therefore judge nothing before the time, until the Lord come, who both will bring to light the hidden things of darkness, and will make manifest the counsels of the hearts: and then shall every man have praise of God.

1 Corinthians 8:1-2 

Now as touching things offered unto idols, we know that we all have knowledge. Knowledge puffeth up, but charity edifieth. And if any man think that he knoweth any thing, he knoweth nothing yet as he ought to know.

1 Corinthians 13:9-10 

For we know in part, and we prophesy in part. But when that which is perfect is come, then that which is in part shall be done away.

John 16:12-13

"I have yet many things to say to you, but you cannot bear them now. When the Spirit of truth comes, he will guide you into all truths.

2 Timothy 2:9

Wherein I suffer trouble, as an evil doer, even unto bonds; but the word of God is not bound.

“God changes his appearance every second. Blessed is the man who can recognize him in all his disguises.” ― Nikos Kazantzakis, Zorba the Greek

Paul wrote that God revealed to him the "mystery of Christ", which is that Gentiles (non-Jews) are included as fellow heirs and members of the same body as believers, in union with Christ through the Gospel, a truth that had been hidden from previous generations.He details this "mystery" in his letters, particularly in Ephesians 3:3-6 and Romans 16:25-26, explaining that this revelation allowed for the inclusion of all people into God's redemptive plan, not just the Jews. 

The Deposit of Faith is closed.

All may be true relative to his knowledge, but that does not modify the assessment that John was not referring to an entire set of books, or scrolls, but only his own. He did not say "books," did he? No, the object of his sentence is "book," a first-person singular noun, elven in both Hebrew and Greek, not to be construed with Mathew, Mark, and Luke, nor the O.T. separate writings.

The Book of Revelation is heavily dependent on and filled with allusions to the Old Testament, particularly from the books of Daniel, Ezekiel, Isaiah, and Zechariah.While not often directly quoting, Revelation uses the language, imagery, and narratives of these Old Testament prophecies and writings to communicate its own message, expecting readers to be familiar with these texts for its symbolic meaning to be understood.There are no direct references to other New Testament books in Revelation, as the latter is generally considered to be one of the last books written in the New Testament canon.  

Are you trying to justify Mormonism?

The more to come from God is revealed in the Book of Revelation

huat r u talking 'bout, Shirley?

What is yet to come is revealed in the Book of Revelation.

Dat's not tru.

The Book of Revelation, also known as the Apocalypse of John, is the final book of the New Testament and a prophetic religious text that uses symbolic visions and dreams to reveal God's perspective on history and the future. Written in Greek by a figure named John, it was addressed to seven churches in the Roman province of Asia Minor around 96 CE to provide hope and challenge in times of crisis, warning them to remain faithful to God. The book details future judgments and a final triumph of God over evil, culminating in the return of Jesus and the renewal of all things.