Ministry is a character profession. To put it bluntly, you can sleep around and still be a good brain surgeon. You can cheat on your mate and have little trouble continuing to practice law. Apparently, it is no problem to stay in politics and plagiarize. You can be a successful salesperson and cheat on your income tax. But you cannot do those things as a Christian or as a minister and continue enjoying the Lord's blessing. You must do right in order to have true integrity. If you can't come to terms with evil or break habits that continue to bring reproach to the name of Christ, please, do the Lord (and us in ministry) a favor and resign.