Christians universally claim that the canon of scripture is closed. According to the tradition, God finished revealing things and the single means of knowing God’s will, gaining authority, and obtaining salvation is fully documented in the scriptures. This is the “sola scriptura” belief–i.e., the scriptures alone save.
This is not true. Even the scriptures do not make such a claim. All the Christian apologists who cite the various Old and New Testament verses to support the claim, rely on convoluted interpretation. They also ignore the promise of scripture that God will continue to speak (James 1:5-6; Joel 2:28-32) and will send prophets (Rev. 11:3; Zech. 4:14).
One of the principles of Biblical hermeneutics is that interpretation of scripture is best accomplished by using the newest to understand the oldest. The passages of the Old Testament quoted in the New Testament mean what the New Testament claims because the New Testament is more recent. If this principle were not used, then you could question many of the ways Old Testament meanings get assigned by New Testament writers because they are counter-intuitive, or even apparently contradictory to the original Old Testament text.
For example, the Isaiah text in 7:14, read apart from the New Testament claims, apparently means that a young virgin will not have time to conceive a child, and give birth (approximately 9 months) before the kings of both Damascus and Samaria are overthrown. (See Isa. 7:5-16.) BUT, according to the New Testament this is a Messianic passage foretelling the virgin birth of Christ. (Matt. 1:23.) Therefore, Christians universally claim the virgin birth of Christ was foretold by Isaiah 7:14.
If you take the rule to interpret the meaning of scripture by using the most recent revelation to assign meaning to all earlier scripture, then the meaning of the Bible ought to be reckoned by using the Book of Mormon and revelations to Joseph Smith. Christians are unwilling to do this, and when considering a new revelation, apply their rules of interpretation in the reverse. It is hypocritical. Moreover, if the same test were applied in like manner using the Old Testament, then Christianity would fail for lack of support.
Consider what the Book of Mormon has to say about this Bibliolatry:
many of the Gentiles shall say: A Bible! A Bible! We have got a Bible, and there cannot be any more Bible. But thus saith the Lord God: O fools, they shall have a Bible; and it shall proceed forth from the Jews, mine ancient covenant people. And what thank they the Jews for the Bible which they receive from them? Yea, what do the Gentiles mean? Do they remember the travails, and the labors, and the pains of the Jews, and their diligence unto me, in bringing forth salvation unto the Gentiles? O ye Gentiles, have ye remembered the Jews, mine ancient covenant people? Nay; but ye have cursed them, and have hated them, and have not sought to recover them. But behold, I will return all these things upon your own heads; for I the Lord have not forgotten my people. Thou fool, that shall say: A Bible, we have got a Bible, and we need no more Bible. Have ye obtained a Bible save it were by the Jews? Know ye not that there are more nations than one? Know ye not that I, the Lord your God, have created all men, and that I remember those who are upon the isles of the sea; and that I rule in the heavens above and in the earth beneath; and I bring forth my word unto the children of men, yea, even upon all the nations of the earth? Wherefore murmur ye, because that ye shall receive more of my word? Know ye not that the testimony of two nations is a witness unto you that I am God, that I remember one nation like unto another? Wherefore, I speak the same words unto one nation like unto another. And when the two nations shall run together the testimony of the two nations shall run together also. And I do this that I may prove unto many that I am the same yesterday, today, and forever; and that I speak forth my words according to mine own pleasure. And because that I have spoken one word ye need not suppose that I cannot speak another; for my work is not yet finished; neither shall it be until the end of man, neither from that time henceforth and forever. Wherefore, because that ye have a Bible ye need not suppose that it contains all my words; neither need ye suppose that I have not caused more to be written. For I command all men, both in the east and in the west, and in the north, and in the south, and in the islands of the sea, that they shall write the words which I speak unto them; for out of the books which shall be written I will judge the world, every man according to their works, according to that which is written. For behold, I shall speak unto the Jews and they shall write it; and I shall also speak unto the Nephites and they shall write it; and I shall also speak unto the other tribes of the house of Israel, which I have led away, and they shall write it; and I shall also speak unto all nations of the earth and they shall write it. And it shall come to pass that the Jews shall have the words of the Nephites, and the Nephites shall have the words of the Jews; and the Nephites and the Jews shall have the words of the lost tribes of Israel; and the lost tribes of Israel shall have the words of the Nephites and the Jews. And it shall come to pass that my people, which are of the house of Israel, shall be gathered home unto the lands of their possessions; and my word also shall be gathered in one. And I will show unto them that fight against my word and against my people, who are of the house of Israel, that I am God, and that I covenanted with Abraham that I would remember his seed forever. (2 Ne. 29:3-14.)
Christians do not actually worship Christ. If they did they would be eager to hear any word that proceeds from His mouth. But instead, they mute Christ, insist they can employ the words of a book as their salvation, and render Christ silent. This is idolatry, and they would rather worship their idol, the book, than the God who died, rose again, and lives still.
If He lives, then He can speak. He does speak. Christians are just not listening.