Solomon
Proverbs 20:10ESV·traditional attribution

Unequal weights and unequal measures are both alike an abomination to the LORD.

Matthew Henry Presbyterian @wholebiblehenry

See here, 1. The various arts of deceiving that men have, all which evils the love of money is the root of. In paying and receiving money, which was then commonly done by the scale, they had divers weights, an under-weight for what they paid and an over-weight for what they received; in delivering out and taking in goods they had divers measures, a scanty...

John Gill Reformed Baptist @doctorgill

Divers weights, and divers measures,.... Or, "a stone and a stone, and an ephah and an ephah" (d). Stones being in old time used in weighing, and an "ephah" was a common measure among the Jews; and these ought not to be different; one stone or weight for buying, and another for selling; and one measure to buy goods in with, and another to sell...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Various measures, implying that some are wrong (compare Pro 11:1; Pro 16:11).