'Preparing' in the Bible

Then the Lord said to Moses, “Speak to the priests, the sons of Aaron, and say to them:‘No one shall defile himself [that is, become ceremonially unclean] for the dead among his people [by touching a corpse or assisting in preparing it for burial],

and I came to Jerusalem. Then I discovered the evil [thing] that Eliashib had done for Tobiah by preparing a room for him in the courtyards of the house of God.

“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.