'Corners' in the Bible

And when ye reap the harvest of your land, thou shalt not wholly reap the corners of thy field, neither shalt thou gather the gleanings of thy harvest.

Ye shall not round the corners of your heads, neither shalt thou mar the corners of thy beard.

They shall not make any baldness upon their head, neither shall they shave off the corners of their beard, nor make any cuttings in their flesh.

And when ye reap the harvest of your land, thou shalt not make clean riddance of the corners of thy field when thou reapest, neither shalt thou gather any gleaning of thy harvest: thou shalt leave them unto the poor, and to the stranger: I am the LORD your God.