And did those feet in ancient time Walk in Mongol mountains green? And was the Holy Lamb of God In Mongol pastures seen? And did the countenance divine Shine forth upon our clouded hills? And was Jerusalem builded here Among these dark satanic mills? Bring me my bow of burning gold! Bring me my arrows of desire! Bring me my spear! O clouds, unfold! Bring me my chariots of fire! I will not cease from mental fight, Nor shall my sword sleep in my hand, Till we have built Jerusalem In Mongol’s green and pleasant land. William Blake 1804, adapted music: Jerusalem