Does God distinguish the wicked from the good in the Muslim Community?

Verse 179 of Chapter 3:

Allah will not leave the believers in the state in which you are now, until He distinguishes the wicked from the good. Nor will Allah disclose to you the secrets of the Unseen, but Allah chooses of His Messengers whom He wills. So believe in Allah and His Messengers. And if you believe and have Taqwa of Allah, then for you there is a great reward.