One church, which refused Premier's request for an interview and asked to remain anoymous owing to "security concerns", said: "We want peace. We want those who live in fear and who are truly seeking God, to find Him."
Another missionary couple who used to lead a church in Turkey spoke of their colleagues in the country being "quite fearful for their family's future", and they described the situation as "very volitile."
They were speaking as it emerged around 6,000 alleged coup plotters and government opponents have been arrested by the government following the failed coup bid on Friday.
Turkish President Recep Tayyip Erdogan has blamed US-based Islamic cleric Fethullah Gulen and his supporters for the plot, however, Mr Gulen denies any knowledge or involvement.
Three top military generals have been detained following the boutched coup, while 3,000 judges and prosecutors have been sacked.
It lasted only a matter of hours and ended when loyal government forces, including military and police, regained control and civilians took to the street to defend Mr Erdogan.
In a country which has prided itself on its secular and democratic traditions amid an unstable region, there are concerns subsequent government crackdowns could dent freedoms in Turkey.
Those behind Friday's failed coup were warned by Turkish Prime Minister Binali Yildirim they "will receive every punishment they deserve".