You shall not have two differing weights in your bag, one heavy and one light.

Leviticus 19:35
You must not use dishonest measures of length, weight, or volume.

Leviticus 19:36
You shall maintain honest scales and weights, an honest ephah, and an honest hin. I am the LORD your God, who brought you out of the land of Egypt.

Deuteronomy 25:14
You shall not have two differing measures in your house, one large and one small.

Proverbs 11:1
Dishonest scales are an abomination to the LORD, but an accurate weight is His delight.

Proverbs 20:23
Unequal weights are detestable to the LORD, and dishonest scales are no good.

Ezekiel 45:10
You must use honest scales, a just ephah, and a just bath.

Micah 6:11
Can I excuse dishonest scales or bags of false weights?

You shall not have in your bag divers weights, a great and a small.