Charles Spurgeon Commentary Micah 6:11-12

"Shall I be pure with wicked balances, and with a bag of deceitful weights? For the rich men thereof are full of violence, and the inhabitants thereof have spoken lies, and their tongue is deceitful in their mouth." — Micah 6:11-12 (ASV)

They were, I suppose, very much like certain merchants one might still encounter today; you cannot trade with them without needing more than two eyes.

Their price has to be beaten down; their quantities must be counted.

God would not have his people like this. He says nothing about the Moabites or the Babylonians doing this, but for his people to do it was very grievous to him.