You are so right. Not sure where I drifted off to. Apologies.
As to your “real” question, where would one begin to talk about repentance in the Old Testament. Is confession prefigured in the Old Testament? It is everywhere.
This from Catholic News Agency:
*"Throughout the rest of the Old Testament, God continues to call persons to repent, confess and do penance. It also becomes more ritualized. Through the law of Moses, he gave specific ritual ways for individuals to confess their sins. In Leviticus 5:5-6 we read after a litany of sins, “…whoever is guilty in any of these cases shall confess the sin he has incurred, and as his sin offering for the sin he has committed he shall bring to the Lord a female animal from the flock…The priest shall then make atonement for his sin.” There must be a confession of sin, penance of sacrifice, and the involvement of a priest. It is the priest who makes atonement, which means to remove an obstacle to reconciliation. Leviticus 5:10 goes on to say, “Thus the priest shall make atonement for the sin the man committed, and it will be forgiven.”
We also read in Numbers 5:5-7, “The Lord said to Moses, ‘Tell the Israelites: If a man [or woman] commits a fault against his fellow man and wrongs him, thus breaking faith with the Lord, he shall confess the wrong he has done, restore his ill-gotten goods in full, and in addition give one fifth of their value to the one he has wronged.” There must be a confession and restitution shall be made as a form of penance."*
I’m not sure what point you are trying to make. The Eucharist is, in a very real sense, a meal to satisfy our hunger; our spiritual hunger. I doubt anyone mistakes this for a meal to nourish our physical bodies.
The sacrificial offering is the body and blood of the Lord under the appearance of bread and wine. That is what the priest is offering to the Father; the once, for all time, perfect offering, Jesus Christ.