'Preparation' in the Bible

On the first day [of the feast] you shall have a holy and solemn assembly, and on the seventh day there shall be another holy and solemn assembly; no work of any kind shall be done on those days, except for the preparation of food which every person must eat—only that may be done by you.

Upon man's flesh shall it not be poured, neither shall ye make any like it, after the preparation of it: it is holy holy shall it be unto you.