Can’t eat the passover sacrifice if the person is unclean, just as can’t commune if in state of mortal sin. Terrible consequences for both:
Lv 7:19b-21 All who are clean may eat flesh, but the person who eats of the flesh of the sacrifice of the Lord’s peace offerings while an uncleanness is on him, that person shall be cut off from his people. And if any one touches an unclean thing, whether the uncleanness of man or an unclean beast or any unclean abomination, and then eats of the flesh of the sacrifice of the Lord’s peace offerings, that person shall be cut off from his people.
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Some sacrifices require the eating of the sacrificed animal:
Ex 34:15 “lest you make a covenant with the inhabitants of the land, and when they play the harlot after their gods and sacrifice to their gods and one invites you, you eat of his sacrifice”
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1 Cor 10:20-21 “No, I imply that what pagans sacrifice they offer to demons and not to God. I do not want you to be partners with demons. You cannot drink the cup of the Lord and the cup of demons. You cannot partake of the table of the Lord and the table of demons.”
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Deut 15:19-23 “All the firstling males that are born of your herd and flock you shall consecrate to the Lord your God; you shall do no work with the firstling of your herd, nor shear the firstling of your flock. You shall eat it, you and your household, before the Lord your God year by year at the place which the Lord will choose. But if it has any blemish, if it is lame or blind, or has any serious blemish whatever, you shall not sacrifice it to the Lord your God.”
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The need for Baptism for the Eucharist:
Ex 12:48 And when a stranger shall sojourn with you and would keep the passover to the Lord, let all his males be circumcised, then he may come near and keep it; he shall be as a native of the land. But no uncircumcised person shall eat of it.
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Just as the Old Covenant is instituted with the real blood of the animals that were sacrificed:
Ex 24:8 “Behold the blood of the covenant which the LORD has made with you in accordance with all these words.”
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The new Covenant is established with the blood of Jesus, by transubstantiation, in the Last Supper:
1 Cor 11:25 “In the same way also the cup, after supper, saying, “This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me.””
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