Why is it significant to the study of religion?
A lot of English religious art was destroyed during the Reformation, when Henry VIII created a new Church (of England) and even more during the Civil War (1642-51). Few examples survive in the UK and those that do were often defaced. This survived because the boards were recycled during the Reformation. The image was turned around and the back converted into a painted board. There is some very faint writing on the board, that can only be seen under infra-red light, thought to have listed The Ten Commandments, typical of a Protestant church furnishing. It is believed the reason for its reuse could have been due to simple economic factors; it was cheaper to reuse old materials than buy new ones.
Devout Catholic parishioners would often scratch and gouge at the hated figure of Judas, so this painting would have been at risk from both Catholics and Protestants alike.
Later in its life, probably in the 19th century, a fourth board was tacked on from a damaged original companion painting, (The Flagellation of Christ) – this was painted over to match the style of The Kiss of Judas and perhaps to turn it into a decorative door. Remarkably, this part of The Flagellation of Christ came from the same original, larger painting, as The Kiss of Judas, which must have once formed part of a cycle of paintings depicting the Passion of Christ.