God's word tells us: The high priest shall put incense on the fire in the sight of the Lord. The smoke of the incense shall cover the mercy-seat above the tokens of the covenant, so that he may not die. He shall take some of the blood of the bull-calf and sprinkle it with his finger over the mercy-seat toward the east.
God taught the people of the old covenant how to celebrate the ritual offered to him in atonement for the sins of men. But you have come to Christ, the true high priest. Through his blood he has made God turn to you in mercy and has reconciled you with the Father. You must not think simply of ordinary blood but you must learn to recognize instead the blood of the Word. Listen to him as he tells you: This is my blood, which will be shed for you for the forgiveness of sins.
There is a deeper meaning in the fact that the high priest sprinkles the blood toward the east. Atonement comes to you from the east. From the east comes the one whose name is Dayspring, he who is mediator between God and men. You are invited then to look always at the east: it it there that the sun of righteousness rises for you, it is there that the light is always being born for you. You are never to walk in darkness; the great and final day is not to enfold you in darkness. Do not let the night and mist of ignorance steal upon you. So that you may always enjoy the light of knowledge, keep always in the daylight of faith, hold fast always to the light of love and peace.
(Origen, Homily on Leviticus, 9, 5. 10:
PG 12, 515. 523; Office of Readings,
Monday, 4th Week of Lent)