Note, 1. The fatherless are taken under God's special protection; with him they not only find mercy shown to them (Hos 14:3) but justice done for them. He is their Redeemer, their Goel, their near kinsman, that will take their part and stand up for them with jealousy, as taking himself affronted in the injuries done to them. As their Redeemer he will plead their cause against those that do them any injury, and, one way or other, will not only defend their right, and recover it for them, but avenge the wrongs done to them. And he is mighty, almighty; his omnipotence is engaged and employed for their protection, and their proudest and most powerful oppressors will not only find themselves an unequal match for this, but will find that it is at their peril to contend with it. 2. Every man therefore must be careful not to injure them in any thing, or to invade their rights, either by a clandestine removal of the old land-marks or by a forcible entry into their fields. Being fatherless, they have none to redress their wrongs, and, being in their childhood, they do not so much as apprehend the wrong that is done them. Sense of honour, and much more the fear of God, would restrain men from offering injury to children, especially fatherless children.

Remove not the old landmark,.... See Gill on Pro 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, Isa 5:8.

(Compare Pro 22:22-23).