Proverbs 23:10

10 Remove not the ancient landmarks; and enter not upon the possession of the fatherless:

Proverbs 23:10 Meaning and Commentary

Proverbs 22:10

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 ) .

Proverbs 23:10 In-Context

8 for he will vomit it up, and spoil thy fair words.
9 Say nothing in the ears of a fool, lest at any time he sneer at thy wise words.
10 Remove not the ancient landmarks; and enter not upon the possession of the fatherless:
11 for the Lord is their redeemer; he is mighty, and will plead their cause with thee.
12 Apply thine heart to instruction, and prepare thine ears for words of discretion.

The Brenton translation of the Septuagint is in the public domain.