SDA History: What We Shall Preach

And he said unto me, Unto two thousand and three hundred days; then shall the sanctuary be cleansed....And after that I looked, and, behold, the temple of the tabernacle of the testimony in heaven was opened:...And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and He will dwell with them, and they shall be His people, and God Himself shall be with them, and be their God.
Daniel 8:14/Revelation 15:5/21:3

"In Daniel is the sanctuary; in Revelation is the sanctuary—its cleansing and all its work. 

In both books, then, as certainly as we preach the books, we shall preach of the sanctuary and its cleansing in heaven, and in ourselves on earth." 

A.T. Jones