Question 85: What is the tenth commandment?
Answer: The tenth commandment is, “Thou shalt not covet thy neighbor’s house. Thou shalt not covet thy neighbor’s wife, nor his man servant, nor his maid servant, nor his ox, nor his ass, nor anything that is thy neighbor’s.”
Scripture: Exodus 20:17.
Question 86: What is required in the tenth commandment?
Answer: The tenth commandment requires contentment with our own condition, with a right and charitable frame of spirit towards our neighbor, and all that is his.
Question 87: What is forbidden in the tenth commandment?
Answer: The tenth commandment forbids all murmuring over our own condition and all envying or grieving at the good of our neighbor, and all inordinate affections for anything that is his.
The Baptist Catechism above was adapted by John Piper. This post in its entirety can be found at http://www.desiringgod.org/articles/a-baptist-catechism