Formal language I believe that is the right language
Hammer and tongs were the tools of the blacksmiths, which had to be very strong and energetic in their work.
Becasue of this "tongs and hammer" evoke the imagery of strengh and vehemence. So this means that the parish priest was very loud and vehement about the prayers.
While many similarities exist between substance abuse treatment for those in the criminal justice system and for those in the general population, people in the criminal justice system have added stressors, including but not limited to their precarious legal situation. Criminal justice clients also tend to have characteristics that affect treatment. These include criminal thinking and criminal values along with the more typical resistance and denial issues found in other substance abuse treatment populations.