'Gleaning' in the Bible

'And in your reaping the harvest of your land ye do not completely reap the corner of thy field, and the gleaning of thy harvest thou dost not gather,

And in your reaping the harvest of your land thou dost not complete the corner of thy field in thy reaping, and the gleaning of thy harvest thou dost not gather, to the poor and to the sojourner thou dost leave them; I Jehovah am your God.'