You shall not see your brother’s donkey or his ox fallen down by the way and ignore them. You shall help him to lift them up again.
The kindness that was commanded to be shown in reference to an enemy (Exo 23:4, etc.) is here required to be much more done for a neighbour, though he were not an Israelite, for the law is consonant to natural equity. 1. That strayed cattle should be brought back, either to the owner or to the pasture out of which they had gone astray, Deu 22:1, Deu 22:2.
Commenting on Deuteronomy 22:1-4
Thou shall not see thy brother's ox or his ass fall down by the way,.... And lie under his burden, not being able to rise with it of himself, nor with all the assistance about it, without further help: and hide thyself from them; cover thine eyes, or turn them another way, and make as if thou didst not see them in distress: thou shalt...
Deu 22:4 A fallen animal belonging to another he was also to help up (as in Exo 23:5 : except that in this case, instead of a brother generally, an enemy or hater is mentioned).