Did Jesus really said this?:
Then He took the cup, and gave thanks, and gave it to them, saying, “Drink from it, all of you.
For this is My blood of the new covenant, which is shed for many for the remission of sins.
Matthew 26:27-28
Now READ what G-d had commanded:
Every moving thing that lives shall be food for you; like the green herbage I have given you everything. But flesh; with its soul its blood you shall not eat.
Genesis 9:3-4
An eternal decree for your generations in all your dwelling places; you may not consume any fat or any blood.
Leviticus 3:17; 7:26-27; 17:10-12, 14; 19:26
(Repeated in Deuteronomy)
Question: Is Blood for atonement or forgiveness of sins?
Answer: Yes.
But not by drinking!
But by throwing or sprinkling
Exodus 24:6-8; 29:15 and repeatedly…
He shall slaughter the bull before Hashem; the sons of Aaron, the Kohanim (priests), shall bring the blood and throw the blood on the Altar, all around – which is at the entrance of the Tent of Meeting.
Leviticus 1:5 and repeatedly mentioned
One last thing!:
Offerings are burned; Not nailed on the cross!
Leviticus 1:7-9
If you want more, proceed here: History