Leviticus is the Pentateuch's book of the law.
Part 3 (of Volume 1) deals with separation. Volume 2 is devoted mostly to this theme.
Chapter 11 deals with gleaning. Gleaning was part of the welfare system, and would be called workfare today. Owners of farms had to let the poor glean the leftovers after the first group of harvesters went through a field. This was hard work, and as such the program let...