Hebrews 8:3-5

Every high priest is appointed to offer both gifts and sacrifices, and so it was necessary for this one also to have something to offer. If he were on earth, he would not be a priest, for there are already priests who offer the gifts prescribed by the law. They serve at a sanctuary that is a copy and shadow of what is in heaven. This is why Moses was warned when he was about to build the tabernacle: “See to it that you make everything according to the pattern shown you on the mountain.”