(Exodus 23:5) "lying (under its burden"): and not a (habitual) "lier." "under its burden": and not (under) more than its (customary) burden. Variantly: "under its burden": and (he is) not (required to help gratis) if its burden is at its side. "and you forbear to help him": There are times that you forbear and times that you help.
An Animal That Routinely Lies Down and Refuses to Move
Mekhilta Tractate Kaspa 2:31