John Gill Commentary Proverbs 23:10

"Remove not the ancient landmark; And enter not into the fields of the fatherless:" — Proverbs 23:10 (ASV)

Remove not the old landmark (See Gill on Proverbs 22:28); and enter not into the fields of the fatherless ; to carry off the increase of them, to reap their wheat, or mow their grass, or turn in cattle to eat it; or to encroach upon them, take in any part of them, or join the whole to their own; for if there is a woe to them that lay field to field, much more to them that enter into and take the fields of the fatherless, and join them to their own, (Isaiah 5:8) .