The believer is dressed in the spiritual garments of divine righteousness, which make him fit for the presence of God. It was the blood of the ram of consecration see Exo. The blood consecrated them to the service of God. Just so the precious blood of Christ consecrates the believer-priest today to His work, to the ministry of worship, intercession and service. First and foremost- Worship .
Worship always comes first in Scripture.
Alas, it is still true that so few believers really enter into their privilege of being priests. But Satan cannot worship God. Only true believers can, those who know and love our Lord Jesus Christ as the One Who redeemed them by His blood. Priests got the best of everything. Priests are not only worshippers,, but intercessors.