Designed for earthenware was trodden by the feet to mix it well, Isaiah 41:25 , was molded on a wheel, and then baked in a kiln, Jeremiah 18:3 43:9 . The potter's art is referred to in Scripture to illustrate man's dependence upon God, Isaiah 64:8 Romans 9:21 . See Job 38:14 . The bricks of Babylon are found marked with a large seal or stamp, and modern travellers find the locks of doors in eastern khans and granaries sealed on the outside with clay.