Westminster Shorter Catechism

Q81

What is forbidden in the tenth commandment?

The tenth commandment forbiddeth all discontentment with our own estate171, envying or grieving at the good of our neighbor, and all inordinate motions and affections to anything that is his172.
Duty
Ch. XIX Of the Law of God

Scripture Proofs

171
1 Corinthians 10:10James 3:14-16
172
Galatians 5:26Colossians 3:5