Matthew Poole and continuators on Proverbs 10:4

4 He becometh poor, that dealeth with a slack hand : but the hand of the diligent maketh rich .

Negligently and slothfully, as appears from the diligence opposed to it in the next branch, and from the use of this word in this sense, Prov. 12. 24, 27. & 19. 15. Ier. 48. 10. Heb. with a deceitful hand, so called, partly because it seems and pretends to do somthing, when in truth it doth nothing; and partly because such persons usually endeavour to maintain themselves by deceit and wickedness, which they cannot or will not do by honest labour and diligence.

Not by it self, nor necessarily, as is manifest from Experience, and is noted, Eccles. 9. 11. but through Gods blessing, which commonly is given to such, by comparing this verse with v. 22. here following.

Marginal references: Ch. 12 24. & 19. 15.; Chap. 13. 4. & 21. 5.