Lazerlike42,
What, specifically, do you not understand about this passage?
Do you notice these verses a little bit further down?
Heb10:18 Now where remission of these is, there is no more offering for sin.
Heb10:19 Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus,
Heb10:20 By a new and living way, which he hath consecrated for us, through the veil, that is to say, his flesh;
The sanctification of us is through (and by) his body, and we must enter into the “holiest”, which means the inner temple of Jesus’ body.
However, the purpose of a priest entering the temple is always sacrificial. Whether of incence for prayer, or blood of the lamb upon the ark for atonement.
The Eucharistic bread is taken on by jesus (joined) to his body, and allows us to enter as priests – to his temple. That is one sense of the passage.
But there is a question of what is offered in sacrifice.
The notion of ONE is twofold: it can mean solitary, and it can mean unity.
eg. Hear O’ Israel, your God is one [Trinity!].
The ONE sacrifice includes us. That ultimately is what you offer if you are in unity with Jesus. Jesus as himself, is offered, but we must also be united in that sacrifice.
On the other side, Jesus’s sacrifice is solitary in time. It will not be repeated – he can no longer suffer, no longer die.
The separation of wine and bread in consecration is only symbolic of atonement sacrifice because Jesus is present body, blood, soul, and divinity totally in either species. We do not kill him anew.
That is, again, that the bread and wine are joined to his body such that it no longer exists by the remote power of his word, spoken at the beginning of the universe – but he himself personally (attentively/with presence) joins the bread and wine to himself such that they are connected to him. Therefore, the bread and wine are not “pieces” of Jesus once consecrated – but are rather more like a window to the whole resurrected Jesus outside of time and space. If you will, they show us the eternal moment of him offering his blood in heaven to the father.
Although the slaughtering portion any sacrifice is complete on an altar, the sacrifice of atonement is not complete until the blood is brought into the temple.
Again (and However) the temple of heaven is timeless.
Just so, the cross ended the butchering – but the blood did not enter heaven formally until the ascention.
The body – through the Eucharist – is available to eat. Just as the lamb, the bread, and the wine was available during the sacrificial passover meal that succeeded slaughtering the lamb.
-Huiou.