In the medieval Gislum Church stands a beautiful Romanesque baptismal font, and above the font hangs a baptismal canopy. Ropework and floral motifs are carved into the granite, and there are traces of the original painting.
Above the current altar table is a plaster figure of the Good Shepherd, and the church contains several memorial plaques from the 18th century.
The church is generally open during daytime from Monday to Thursday and until 12:00 PM on Fridays.