'Lines' in the Bible

He stood and called to the battle lines of Israel and said to them, "Why have you come out to form ranks [for] battle? [Am] I not the Philistine, and you the servants of Saul? Commission for yourselves a man and let him come down to me.

Then the Philistine said, "I hereby defy the battle lines of Israel today! Give me a man so that we may fight each other!"

Israel and [the] Philistines drew up [in] battle lines, {one battle line against the other}.

Now David had spoken to the men [who were] standing with him, saying, "What will be done for the man who defeats this Philistine and removes [the] disgrace from Israel? For who [is] this uncircumcised Philistine that he defies the battle lines of the living God?"

Your servant has struck down both the lion and the bear, and this uncircumcised Philistine will be like one of them, because he defied the battle lines of the living God."

Then David said to the Philistine, "You [are] coming to me with a sword and with a spear and with a javelin, but I am coming to you in the name of Yahweh of hosts, the God of the battle lines of Israel, whom you have defied!

But David's men said to him, "Look, we [are] afraid here in Judah. {How much more} [if] we go [to] Keilah to the battle lines of [the] Philistines?"