Charles Ellicott Commentary Leviticus 23:22

"And when ye reap the harvest of your land, thou shalt not wholly reap the corners of thy field, neither shalt thou gather the gleaning of thy harvest: thou shalt leave them for the poor, and for the sojourner: I am Jehovah your God." — Leviticus 23:22 (ASV)

You shall not make a clean riddance. —Better, you shall not wholly reap, as the Authorized Version translates the same phrase in Leviticus 19:9. In the midst of rejoicing and thankfulness to God for a bountiful harvest, the Lawgiver again inculcates the duty of remembering the poor, and reminds the owners of the land that the needy have legally a share in the produce, as has been enacted in Leviticus 19:9.