Calvary Triptych (right wing)
by GOES, Hugo van der, Oil on wood
The right wing depicts the episode of the brazen serpent. The people of Israel are marching through a steep-sided valley. Moses has climbed up onto a rocky promontory above them, his stick in one hand. There he complains to Jehovah that the people will not obey him any more, whereupon Jehovah turns his stick into a snake before the eyes of the astonished crowd.