There are some verses about this question, but we failed to notice them. Revelation 2:17, “He that has an ear, let him hear what the Spirit said to the churches; To him that overcomes will I give to eat of the hidden manna….” This verse mentions “what the Spirit said to the churches.” Obviously, God will speak in the last days. Besides, it also mentions the “hidden manna.” In the Old Testament, “manna” was the food God gave to the Israelites. And in the New Testament, “manna” refers to God’s word. So of course, the “hidden manna” means the hidden words of God, the truth God didn't express. Revelation 5:1-5. “And I saw in the right hand of him that sat on the throne a book written within and on the backside, sealed with seven seals. And I saw a strong angel proclaiming with a loud voice,:Who is worthy to open the book, and to loose the seals thereof? And no man in heaven, nor in earth, neither under the earth, was able to open the book, neither to look thereon. And I wept much, because no man was found worthy to open and to read the book, neither to look thereon. And one of the elders said to me, Weep not: behold, the Lion of the tribe of Juda, the Root of David, has prevailed to open the book, and to loose the seven seals thereof.” Here, “a sealed book,” which “written within and on the backside,” is mentioned. This means the book contains a lot of things, but they haven’t been revealed. When God comes again, he will open the “sealed book” and tell us what is written in it. So, we can know more clearly that in the end time, God will speak outside the Bible.