You’re right. His blood was of the New Covenant. He commanded no one to drink His blood under the Old Covenant.
It was NOT consumed.
No where in the OT was blood ever consumed.
I've already referenced the Council of Jerusalem's ruling on this bringing this under the New Covenant.
If you want from the New Covenant perspective we can do that also.
Catholics claim the mass is the same sacrifice as the Cross.
Q. 920. Is the Mass the same sacrifice as that of the Cross?
A. The Mass is the same sacrifice as that of the Cross.
Yet they contradict themselves by stating:
Q. 917. What is the Mass?
A. The Mass is the unbloody sacrifice of the body and blood of Christ. http://www.baltimore-catechism.com/lesson24.htm
However, both of these go against the NT teaching on Christ being offered as a ONE TIME sacrifice. There is no need of another on-going sacrifice as taught by catholicism.
And don't just think of the Mass conducted at your local church.
This is happening who knows how many times during just one day around the world. Christ is being sacrificed again and again and again and again, etc.