What possible purpose could be served by talking to his Church?
If anything, talk to Customs-ICE about all the illegals he has working for him.
As for working for Christians: I consider myself one, but suggest you discount it 100% when a boss/co-worker likes to advertise himself/herself as one. By their works shall you know them.
Had one boss (who sounds like old Mac) who was always “Sweet Jesus” this and “The Good Lord” that - and was in fact a shark who would take your last dollar if he had the chance.
The only thing about ICE is - you want to make sure nobody in town knows you dropped the bomb. In normal times - I would not expect ICE to take a look. Based on AZ passing the law - the Dems and Obama are having show raids leading up to the election.
Note to all the Marco Rubio lovers here.
I would be focused on finding another job. Unless you run the show or know you can get a new job immediately - you say nothing and apologize to the Mac’s of the world. If he is writing the check - apologize and say it will never happen again. It is not right but it is the way it is.
As far as Christianity? Mac is phony. It is not the church’s issue. Mac may have buddies in town that may make it harder for you to get another job.
If you drop the dime on calling ICE - be very very quiet about it.