Jim and Ann McQuire, from Cumbernauld, North Lanarkshire in Scotland were among 38 people killed by a gunman in the holiday resort of Sousse on Friday June 26.
Speaking on Premier's News Hour last week, Rt Revd Dr Angus Morrison, Moderator of the Church of Scotland General Assembly paid tribute to the couple.
He said: "Jim and Ann were much loved and esteemed members of our parish church in Cumbernauld at Abronhill. Jim was captain at the Boys Brigade and they were both very active in the life of the church."
Abronhill Parish Church will host the service after previously holding prayer gatherings to help the community deal with their deaths.
Speaking ahead of the service, Revd Joyce Keyes said: "The church has been inundated with messages and expressions of support in the form of flowers, cards, emails, prayers and words of comfort both for the McQuire family and for the church community.
"Many people have been touched by the tragic deaths of people enjoying their holiday, even more so when they include folks you know - people from your own community."
A book of condolence at the church, which has already been signed by hundreds of people, is expected to remain open until after the funeral service.
Meanwhile. thousands of British holidaymakers are being evacuated from Tunisia after the UK government warned a second terror attack was 'highly likely'.
But some of those who've come back say they are disappointed they've had to cut their holiday short.