Deuteronomy 22:4
Thou shalt not see thy brother’s ass or his ox fall down by the way, and hide thyself from them: thou shalt surely help him to lift them up again. (Deuteronomy 22:4)
Hide thyself.
 That is, slip away before he should be observed in the vicinity of the animals in distress (see Luke 10:31, 32).
Surely help.
 Compare Ex. 23:4, 5.