AGE OF ATONEMENT
Here in the 6th day of Man's Work Week, we are awaiting our Savior Jesus Christ to return so that we can be clothed with His righteousness. Remember that God gave us a path towards redemption by his sacrifice, but we await a greater redemption when our bodies are no longer plagued by sin and death, but our garments are made of robes of white and we will have immortal bodies. This obviously has not happened yet, but will occur by the end of the 6th millennium when Jesus returns as the 2nd Adam.
The High Priest would carry the blood that he received from the slain lamb into the Holy of Holies and sprinkle the blood on the Mercy Seat, making atonement for the sins of the people. God's 6th Holiday is Atonement and is directly connected to the Mercy Seat where the final redemptive act is made complete.