Deuteronomy 25:15 in the King James Version
But thou shalt have a perfect and just weight, a perfect and just measure shalt thou have: that thy days may be lengthened in the land which the LORD thy God giveth thee.
Context
14 You shall not have in your house diverse measures, one large and one small.
15 You shall have a perfect and just weight. You shall have a perfect and just measure, that your days may be long in the land which the LORD your God gives you.
16 For all who do such things, all who do unrighteously, are an abomination to the LORD your God.