2 Chronicles 4:2, 6, 14-15

Also he made a molten sea of ten cubits from brim to brim, round in compass, and five cubits the height thereof; and a line of thirty cubits did compass it round about.

He made also ten lavers, and put five on the right hand, and five on the left, to wash in them: such things as they offered for the burnt offering they washed in them; but the sea was for the priests to wash in.

He made also bases, and lavers made he upon the bases; one sea, and twelve oxen under it.