purpose

Proverbs 15:22
Plans fail for lack of counsel, but with many advisers they succeed.

Proverbs 24:6
only with sound guidance should you wage war, and victory lies in a multitude of counselors.

and

Proverbs 25:8
do not go out to argue in haste. Otherwise, what will you do in the end when your opponent puts you to shame?

Judges 1:1, 2
After the death of Joshua, the Israelites inquired of the LORD, "Who will be the first to go up and fight for us against the Canaanites?" . . .

Judges 9:29
If only this people were under my authority, I would remove Abimelech; I would say to him, 'Muster your army and come out!'"

Judges 20:7, 18, 23, 26-28
Behold, all you Israelites, give your advice and verdict here and now." . . .

2 Samuel 2:26, 27
Then Abner called out to Joab: "Must the sword devour forever? Do you not realize that this will only end in bitterness? How long before you tell the troops to stop pursuing their brothers?" . . .

2 Chronicles 25:17-23
Then Amaziah king of Judah took counsel and sent word to the king of Israel, Jehoash son of Jehoahaz, the son of Jehu. "Come, let us meet face to face, " he said. . . .

Luke 14:31
Or what king on his way to war with another king will not first sit down and consider whether he can engage with ten thousand men the one coming against him with twenty thousand?