Representatives from the four congregations – Southend, Carradale, Highland and Lorne and Lowland – met on Monday evening.
Free Church moderator, Reverend Derek Lamont will speak and discuss events leading up to and including the crucifixion of Jesus.
The certificates were signed by the Moderator of the Church of Scotland General Assembly, the Right Reverend Dr Derek Browning.
Rev Wallace said: ‘I have enjoyed Campbeltown immensly. It has been a great experience there is such a sense of community working with people here and thoughts for all.
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Hark the Herald Angels Sing and perennial classic Away in a Manger were also included in the repertoire, although the preacher, Dr Crooks, admitted his favourite festive song is: Santa Claus is Coming to Town by Bruce Sprinsteen.
Dr Crooks said he was honoured to be called to be minister of Campbeltown Free Church
Please try to join us for some lively discussion which should be positive and helpful to us all.’
After more than 36 years of ministry in the Presbyterian church in Ireland, Dr Crooks became a Free church minister.