The Archbishop of Wales, Dr Barry Morgan, will deliver his Christmas message at Llandaff Cathedral on Christmas Day.
Forgiveness and reconciliation will be at the heart of the message, referencing the qualities of former South African leader Nelson Mandela, who died earlier this month.
The service will begin at 10:45am.
The first woman dean of Llandaff Cathedral has resigned - just two months after being installed.
The Very Rev Janet Henderson became only the second woman dean in Wales' history when she took on the role in March.
But last night the Archbishop of Wales Dr Barry Morgan confirmed he had accepted her resignation with immediate effect.
The Archbishop of Wales, Dr Barry Morgan has issued a Christmas message to the people of Wales.
In it, he encourages adults to 'regain a child’s sense of wonder' of the world in which we live.
The Archbishop, will preach at Llandaff Cathedral this evening and on Christmas Day.