Original Verse:
Proverbs Chapter 16 Verse 26He that laboureth laboureth for himself; for his mouth craveth it of him.

Reference Verses:
2nd Thessalonians Chapter 3 Verse 8-12 [8] Neither did we eat any man's bread for nought; but wrought with labour and travail night and day, that we might not be chargeable to any of you: [9] Not because we have not power, but to make ourselves an ensample unto you to follow us. [10] For even when we were with you, this we commanded you, that if any would not work, neither should he eat. [11] For we hear that there are some which walk among you disorderly, working not at all, but are busybodies. [12] Now them that are such we command and exhort by our Lord Jesus Christ, that with quietness they work, and eat their own bread.
Proverbs Chapter 9 Verse 12If thou be wise, thou shalt be wise for thyself: but if thou scornest, thou alone shalt bear it.
Proverbs Chapter 14 Verse 23In all labour there is profit: but the talk of the lips tendeth only to penury.
1st Thessalonians Chapter 4 Verse 11And that ye study to be quiet, and to do your own business, and to work with your own hands, as we commanded you;
1st Thessalonians Chapter 4 Verse 12That ye may walk honestly toward them that are without, and that ye may have lack of nothing.
Ecclesiastes Chapter 6 Verse 7All the labour of man is for his mouth, and yet the appetite is not filled.