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KJV - He that laboureth laboureth for himself; for his mouth craveth it of him.
ASV - The appetite of the laboring man laboreth for him; For his mouth urgeth him `thereto'.
BBE - The desire of the working man is working for him, for his need of food is driving him on.
WEB - The appetite of the laboring man labors for him; For his mouth urges him on.
YLT - A labouring man hath laboured for himself, For his mouth hath caused `him' to bend over it.