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 a molten sea - (see the notes at 1 Kings 7:23-26, as in that passage "knops" occur instead of "oxen" it is generally supposed that the rows of ornamental knops were in the form of ox-heads.)