Deuteronomy 25:14-16 NIV

14 Do not have two differing measures in your house--one large, one small.
15 You must have accurate and honest weights and measures, so that you may live long1 in the land the LORD your God is giving you.

References for Deuteronomy 25:15

16 For the LORD your God detests anyone who does these things, anyone who deals dishonestly.2

References for Deuteronomy 25:16