'Compass' in the Bible

And he formeth the two pillars of brass; eighteen cubits is the height of the one pillar, and a cord of twelve cubits doth compass the second pillar.

And he maketh the molten sea, ten by the cubit from its edge unto its edge; it is round all about, and five by the cubit is its height, and a line of thirty by the cubit doth compass it round about;