Not very Christian of that Pastor was it?
I once left a C note on the table for a favored waitress who was struggling to buy clothing for her many children. The restrauteur of that establisment only paid his wait staff around a buck sixty an hour which seems to be the norm in most places.
I always leave a decent tip for good service and sometimes a yankee dime to boot. Waitresses really remember that.
Done it from one side of America to the other and parts of Canada too.