Many of the panels of the Ghent altar-piece are now in the Museums of Berlin and Brussels.

They belonged to the wings or shutters which were made to close over the central parts, and which used also to be painted outside and inside with devotional or related subjects.

The four great central panels on which these shutters used to close are still at Ghent.

The subject of the 'Adoration of the Lamb' was taken from Revelations, where before the Lamb has opened the seals of the book, St.John says: And every creature which is in heaven, and on the earth, and under the earth, and such as are in the sea, and all that are in them, heard I saying, Blessing, and honour, and glory, and power, be unto him that sitteth upon the throne, and unto the Lamb for ever and ever.
Hubert has figured this verse by assembling, as in one time and place, representatives of Christendom.

They who worship are the prophets, apostles, popes, martyrs, and virgins.