The Eighth Commandment (8 of 10, God's Law) Thou shalt not steal. (Exodus 20:15)

The Westminster Larger Catechism (1648), teaches,

Question 141: What are the duties required in the eighth commandment?
Answer: The duties required in the eighth commandment are, truth, faithfulness, and justice in contracts and commerce between man and man; rendering to everyone his due; restitution of goods unlawfully detained from the right owners thereof; giving and lending freely, according to our abilities, and the necessities of others; moderation of our judgments, wills, and affections concerning worldly goods; a provident care and study to get, keep, use, and dispose these things which are necessary and convenient for the sustentation of our nature, and suitable to our condition; a lawful calling, and diligence in it; frugality; avoiding unnecessary lawsuits and suretyship, or other like engagements; and an endeavor, by all just and lawful means, to procure, preserve, and further the wealth and outward estate of others, as well as our own.

Question 142: What are the sins forbidden in the eighth commandment?
Answer: http://www.swrb.com/newslett/actualNLs/WLC.htm

And remember the Lord Jesus Christ said:

'If ye love me, keep my commandments.' (John 14:15).

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