Parallel
Proverbs 16:26
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
He that laboureth (note: Heb. The soul of him that laboureth) laboureth for himself; for his mouth craveth it of him (note: Heb. boweth unto him).
A worker’s appetite works for him because his hunger drives him onward.