'Perimeter' in the Bible

So David got up early in the morning, left the flock with someone to keep it, loaded up, and set out as Jesse had instructed him.He arrived at the perimeter of the camp as the army was marching out to its battle formation shouting their battle cry.

The perimeter of the city will be six miles, and the name of the city from that day on will be: Yahweh Is There.”