We just learned about the Ninth Commandment to not covet your neighbor's house.
The tenth commandment that God gave to Moses is:
Thou shalt not covet thy neighbor’s wife, nor his man-servant, nor his maid-servant, nor his cattle, nor anything that is his.
This means do not sit and think about how much you want anything that belongs to your neighbor.
(from: wikisource - Luther's Small Catechism)
![tenth commandment](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6b/Tenth_Commandment_%28Boston_Public_Library%29.jpg/333px-Tenth_Commandment_%28Boston_Public_Library%29.jpg)
(from: wikipedia - thou shalt not covet)