Clay. As the sediment of water remaining in pits or in streets, the word is used frequently in the Old Testament. Ps. 18:42; Isa. 57:20; Jer. 38:6, and in the New Testament, John 9:6, a mixture of sand or dust with spittle. It is also found in the sense of potter’s clay. Isa. 41:25. The great seat of the pottery of the present day in Palestine is Gaza, where are made the vessels in dark-blue clay so frequently met with. Another use of clay was for sealing. Job 38:14. Our Lord’s tomb may have been thus sealed, Matt. 27:66, as also the earthen vessel containing the evidences of Jeremiah’s purchase. Jer. 32:14. The seal used for public documents was rolled on the moist clay, and the tablet was then placed in the fire and baked.