What did the high priest do with the blood on the Day of Atonement?
On the Day of Atonement, the high priest took the blood of a sacrificed animal, passed through the tabernacle behind the veil, and sprinkled it on the mercy seat—the very presence of God under the Shekinah glory—so Israel's sins were covered for the next year.
Les teaches that on the Day of Atonement, the high priest once a year took the blood of a sacrificed animal and made his way through the front part of the tabernacle, went in behind the veil, and sprinkled the blood on the mercy seat, which was the very presence of God under the Shekinah glory. This covered Israel's sins for the next year. Les explains that this was the role of the high priest on behalf of Israel, and that our high priest had to do the same thing. He is not a high priest after the order of Aaron, but after the order of Melchizedek, interceding for us at the throne room of heaven. Les connects this to John's Gospel, chapter 20, on the resurrection Sunday morning, where Mary Magdalene saw the tomb was empty and ran to tell the disciples.
And the LORD said unto Moses, Speak unto the priests the sons of Aaron, and say unto them, There shall none be defiled for the dead among his people: