From Wikipedia

Private Life Of An Easter Masterpiece

The Taking Of Christ

Caravaggio

The Taking of Christ is a painting by the Italian Baroque master Michelangelo Merisi da Caravaggio (c. 1602), originally comissioned by nobleman Ciriaco Mattei. It is housed in the National Gallery of Ireland, Dublin.

There are seven figures in the painting, from left to right: St John, Jesus, Judas, two soldiers, a man (a self-portrait of Caravaggio), and a soldier. They are standing, and only the upper three-quarters of their bodies are depicted. The figures are arrayed before a very dark background, in which the setting is disguised. The main light source is not evident in the painting but comes from the upper left. There is a lantern being held by the man at the right (Caravaggio). At the far left, a man (St John) is fleeing; his arms are raised, his mouth is open in a gasp, his cloak is flying and being snatched back by a soldier.