רָ֗אשׁ עֹשֶׂ֥ה כַף־רְמִיָּ֑ה וְיַ֖ד חָרוּצִ֣ים תַּעֲשִֽׁיר׃
He becometh poor that dealeth with a slack hand; but the hand of the diligent maketh rich.
Rashi on Proverbs
A poor man makes a deceitful scale Whoever is impoverished in [his knowledge of] Torah promulgates false decisions.
Rashi on Proverbs
deceitful scales Scales of deceit. According to its simple meaning, it refers to merchants.
Rashi on Proverbs
and the hand of those who make true decisions The upright, who decide a matter truly and justly without injustice.