Kidnappers have released scores of children abducted from a school in Bamenda, west Cameroon early this week.
Two girls are still missing, as well as the school principal and a teacher.
At least 79 students and three others, including the principal, were seized, according to government officials, no one was killed during the kidnapping which occurred in the village of Nkwen.
No groups have claimed responsibility for the abductions but some believe secessionist fighters could be to blame.
But it remains unclear who the kidnappers were and why the children were taken.
The appeal was signed by the President of the National Episcopal Conference of Cameroon, Mgr Samuel Kleda, Archbishop of Douala, by Rev Fonki Samuel Forba of the Council of Protestant Churches of Cameroon, and by Sheikh Oumarou Malam, of the Upper Islamic Council of Cameroon. "They look exhausted and psychologically tortured".
"It is right that we have campaigned for schools to be shut down over the last two years, but at the start of this new school season, we decided that it would be best to let children go back for the sake of their education". The y also revealed this was the second time children have been kidnapped from the school in just a week.
The priest added that another 11 school children had been kidnapped by the same armed group on October 31, then released... Believers are urging for prayers as the abductors have announced these children will be released only after their demands are fulfilled.
The turmoil in Cameroon comes after President Paul Biya won a seventh term last month in an election the US said was marked by irregularities.
An Anglophone group, the Ambazonia International Policy Commission (AIPC), has however denied that the separatists were behind the kidnapping, noting that the person recording the video appears to have a poor grasp of Pidgin-English, the language spoken widely in the Anglophone area of the country. The outbursts were characterized by calls for secession where the Anglophone Cameroonians want to break from the larger Francophone Cameroon.
Alain, 17, described how the kidnappers had taken them from school early Monday morning, forcing them to run and at one point cover their faces.
Biya, 85, was sworn in this week for a seventh term and said he was working to restore peace in the country's the troubled Anglophone regions.
Flag of the proposed Republic of Ambazonia.
Hundreds have been killed in violence in the country in the past year, the AP reports. They have mounted attacks against civilians who do not support their cause. "We kept walking and walking, our legs were paining", they said.