Biblical explanation
The Bible repeatedly emphasizes that God's revealed Word is authoritative and must not be altered. Moses warned: "Ye shall not add unto the word which I command you, neither shall ye diminish ought from it." Deuteronomy 4:2, KJV Proverbs similarly warns: "Add thou not unto his words, lest he reprove thee, and thou be found a liar." Proverbs 30:6, KJV Revelation gives a similar warning concerning its prophecy (Revelation 22:18-19). At the same time, the Bible contains references to other writings. Joshua 10:13 refers to the Book of Jasher, for example. The existence of a historical or literary work outside the biblical canon does not automatically make it inspired Scripture. Jude 14-15 also contains language resembling material found in 1 Enoch. Quoting or referring to a statement does not necessarily establish the entire source as inspired Scripture. The Bible does not give us a complete list titled "These books are excluded." Therefore, we should be cautious about making claims stronger than Scripture itself. The central biblical principle is that God's inspired Word is authoritative. Not every ancient religious document claiming revelation is therefore Scripture.
Key takeaway
The great controversy reveals God's character as Christ ministers as our High Priest in the heavenly sanctuary. The dead await the resurrection, Christ's return will be visible and personal, and prophecy calls believers to faithful mission rather than date-setting or fear.