'Sacrificial' in the Bible

“As for you, O house of Israel,” thus says the Lord God, “Go, let everyone serve his idols; but later you shall most certainly listen to Me, and you shall no longer profane My holy name with your gifts and with your idols.

“As for you, son of man, thus says the Lord God, ‘Say to every kind of bird and to every animal of the field, “Assemble and come, gather from every side to My sacrifice that I am slaughtering for you, as a great sacrificial feast on the mountains of Israel, and you will eat flesh and drink blood.

So you will eat fat until you are filled and drink blood till you are drunk, at the sacrificial feast which I have prepared for you.