'Lines' in the Bible

He defeated Moab, and measured them with a length of rope, making them lie down on the ground; he measured two lengths to [choose those to] put to death, and one full length to [choose those to] be kept alive. And the [surviving] Moabites became servants to David, bringing tribute.

Then Asa went out against him, and they drew up in battle formation in the Valley of Zephathah at Mareshah.

The [boundary] lines [of the land] have fallen for me in pleasant places;Indeed, my heritage is beautiful to me.

I will give thanks to You with an upright heart,When I learn [through discipline] Your righteous judgments [for my transgressions].