Lord's Day 42

Not only such theft and robbery as are punished by the government, but also all wicked schemes and devices, such as false weights and measures, deceitful merchandising, counterfeit money, and excessive interest, by which we may get our neighbour's possessions. He forbids, in short, all greed and the misuse and squandering of his gifts.

I must promote my neighbour's good wherever I can and may, deal with him as I would like others to deal with me, and work faithfully so that I may be able to give to those in need.