Proverbs 10:4 - Matthew Poole's English Annotations on the Holy Bible

With a slack hand; 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, Proverbs 12:24,27 Proverbs 19:15 Jeremiah 48:10. Heb. with a deceitful hand; so called, partly because it seems and pretends to do something, 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. Maketh rich; not by itself, nor necessarily, as is manifest from experience, and is noted, Ecclesiastes 9:11, but through God's blessing, which commonly is given to such, by comparing this verse with Proverbs 10:22, here following.