To enjoin what is good and approved such as Halal goods, or words and actions, and forbid what is evil and disapproved such as Haram goods, words and Aactions. 

1. You are the best community in the world only because you enjoin good and forbid evil.

“You are the best nation produced [as an example] for mankind. You enjoin what is right and forbid what is wrong and believe in Allah. If only the People of the Scripture had believed, it would have been better for them. Among them are believers, but most of them are defiantly disobedient”.