Deuteronomy 19:14 - Joseph Benson’s Commentary on the Old and New Testaments

Thou shalt not remove thy neighbour's land-mark Having provided for the preservation of the lives of innocent persons against such as might be disposed to take them away, he proceeds to give a charge for securing every man's right and property in other matters; and especially forbids all encroachments upon boundaries of lands and estates. Josephus considers this as a prohibition, not only against removing any land-mark of an Israelite, but also any that might distinguish their territories from those of any of the neighbouring nations, with whom they might be at peace, the breaking in upon these bounds being generally the occasion of wars and insurrections, which arise from the covetousness of men, who would thus fraudulently enlarge their possessions.