Hebrews 8:1 & 2
The point of what we are saying is this: We do have such a high priest, who sat down at the right hand of the throne of the Majesty in heaven, and who serves in the sanctuary, the true tabernacle set up by the Lord, not by man.
In chapter 7, Paul explained how Jesus was declared to be our High Priest by the power of His resurrection and this was compared to the earthly Levitical priesthood. He continues, here, to share some differences. First, we see that Jesus went to heaven and sat down at the Father's right hand. This is a very big detail because the earthly priests that served in the temple and tabernacle never had a chair or sat down. Their work was never done as they were constantly required to offer sacrifices and present offerings for the people. But, the work of Jesus was finished when He was sacrificed on the cross as the atonement for our sins. The second thing we see is that Jesus serves in the "true" tabernacle in heaven. The actual word means "genuine" and is a reminder that the earthly tabernacle was simply a copy of the tabernacle in heaven. In our world today, there are cheap copies of just about everything that we can imagine and most people would rather have the real thing.