'Lines' in the Bible

He defeated Moab, and measured them with the line, making them lie down on the ground; and he measured two lines to put to death and one full line to keep alive. And the Moabites became servants to David, bringing tribute.

The lines have fallen to me in pleasant places;Indeed, my heritage is beautiful to me.

“For behold, I am going to arouse and bring up against BabylonA horde of great nations from the land of the north,And they will draw up their battle lines against her;From there she will be taken captive.Their arrows will be like an expert warriorWho does not return empty-handed.

“Draw up your battle lines against Babylon on every side,All you who bend the bow;Shoot at her, do not be sparing with your arrows,For she has sinned against the Lord.