The subject of this picture is the prime minister, William Pitt. Blake showed this work in his exhibition in 1809, describing Pitt as ‘that Angel who, pleased to perform the Almighty’s orders, rides on the whirlwind, directing the storms of war.’
Pitt had led Britain into war against France after the 1789 Revolution. Blake saw him as one ‘ordering the Reaper to reap the Vine of the Earth, and the Plowman to plow up the Cities and Towers’. The words reflect Blake’s apocalyptic vision of war. The huge beast, Behemoth, is under Pitt and at his command.