'Compass' in the Bible

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

And under the brim of it round about there were knops which did compass it, for ten cubits, compassing the sea round about: the knops were in two rows, cast when it was cast.

And in the top of the base was there a round compass half a cubit high; and on the top of the base the stays thereof and the panels thereof were of the same.