2 Samuel 20:16-22
Then a wise woman called from the city, "Hear, hear! Please tell Joab, 'Come here that I may speak with you.'"
So he approached her, and the woman said, "Are you Joab?" And he answered, "I am." Then she said to him, "Listen to the words of your maidservant." And he answered, "I am listening."
Then she spoke, saying, "Formerly they used to say, 'They will surely ask [advice] at Abel,' and thus they ended [the dispute].
"I am of those who are peaceable [and] faithful in Israel. You are seeking to destroy a city, even a mother in Israel. Why would you swallow up the inheritance of the LORD?"
Joab replied, "Far be it, far be it from me that I should swallow up or destroy!
"Such is not the case. But a man from the hill country of Ephraim, Sheba the son of Bichri by name, has lifted up his hand against King David. Only hand him over, and I will depart from the city." And the woman said to Joab, "Behold, his head will be thrown to you over the wall."
Then the woman wisely came to all the people. And they cut off the head of Sheba the son of Bichri and threw it to Joab. So he blew the trumpet, and they were dispersed from the city, each to his tent. Joab also returned to the king at Jerusalem.
Ecclesiastes 9:13-18
Also this I came to see as wisdom under the sun, and it impressed me.
There was a small city with few men in it and a great king came to it, surrounded it and constructed large siegeworks against it.
But there was found in it a poor wise man and he delivered the city by his wisdom. Yet no one remembered that poor man.
So I said, "Wisdom is better than strength." But the wisdom of the poor man is despised and his words are not heeded.
The words of the wise heard in quietness are [better] than the shouting of a ruler among fools.
Wisdom is better than weapons of war, but one sinner destroys much good.
captain of the king's guard
Genesis 37:36
Meanwhile, the Midianites sold him in Egypt to Potiphar, Pharaoh's officer, the captain of the bodyguard.
Jeremiah 39:9
As for the rest of the people who were left in the city, the deserters who had gone over to him and the rest of the people who remained, Nebuzaradan the captain of the bodyguard carried [them] into exile in Babylon.
Jeremiah 52:12
Now on the tenth [day] of the fifth month, which was the nineteenth year of King Nebuchadnezzar, king of Babylon, Nebuzaradan the captain of the bodyguard, who was in the service of the king of Babylon, came to Jerusalem.
Jeremiah 52:14
So all the army of the Chaldeans who [were] with the captain of the guard broke down all the walls around Jerusalem.