Leave alone those who are so seriously involved in their worldly affairs that consider their religion as "another social function" [going to the church on Sunday (or Mosque on Friday) and once the service is over, taking "business is business" attitude.] Let them know that their evil deeds destroy their souls. They will find none but God as their Lord and intercessor [on the Day of Judgment] and even if they can offer a huge ransom, it will not be accepted from them. Such people who have destroyed their souls with their wrongdoings have to drink boiling water and submit themselves to a painful punishment in account of their denial.