Do not be unfair in measurements of length, weight, or volume. You are to have honest balances, honest weights, an honest dry measure, and an honest liquid measure; I am the Lord your God, who brought you out of the land of Egypt. (Leviticus 19:35-36)
If you make a sale to your neighbor or a purchase from him, do not cheat one another. (Leviticus 25:14)
Do not have differing weights in your bag, one heavy and one light. Do not have differing dry measures in your house, a larger and a smaller. You must have a full and honest weight, a full and honest dry measure, so that you may live long in the land the Lord your God is giving you. For everyone who does such things and acts unfairly is detestable to the Lord your God. (Deuteronomy 25:13-16)
Dishonest scales are detestable to the Lord, but an accurate weight is his delight. (Proverbs 11:1)
Better a little with righteousness than great income with injustice. (Proverbs 16:8)
Honest balances and scales are the Lord’s; all the weights in the bag are his concern. (Proverbs 16:11)
Differing weights and varying measures—both are detestable to the Lord. (Proverbs 20:10)
Differing weights are detestable to the Lord, and dishonest scales are unfair. (Proverbs 20:23)
Whoever is faithful in very little is also faithful in much, and whoever is unrighteous in very little is also unrighteous in much. (Luke 16:10)
Indeed, we are giving careful thought to do what is right, not only before the Lord but also before people. (2 Corinthians 8:21)
Therefore, putting away lying, speak the truth, each one to his neighbor, because we are members of one another. (Ephesians 4:25)
Do not lie to one another, since you have put off the old self with its practices… (Colossians 3:9)