The interior of the church includes: models of the ships Fogel Grip and Kalmar Nyckel, which are suspended from the ceiling. There are a few items that remain from the log church in Tinicum, including the Baptismal Font, the golden sprays on the lectern and pulpit, and the Cherubim below the organ.

The organ itself was purchased in 1902 from the renowned Hook & Hastings firm of Boston (Gloria Dei was perhaps the first church in America where an organ was used, as early as 1703). A fine carving of the angel Gabriel (reflecting what is commonly found in Swedish churches) can also be seen inside Gloria Dei.