The Ark of the Covenant - What was this mysterious container and what exactly did it house?. Constructed from a blueprint provided by God, the Ark of the Covenant has been considered to be some type of communication device so to converse with God, it has also been considered to be a mysterious and powerful energy device, capable of flattening armies. A considerable amount of investigation into what the Ark really is has been carried out by researcher and author Jason Martell who has his own theories as to the mysterious biblical Ark.