2 Samuel 20:3-7

Then David came to his house in Jerusalem, and the king took the ten women, the concubines whom he had left behind to take care of the house, and put them in custody and provided them with food, but did not have relations with them. So they were locked up until the day of their death, living as widows.

Now the king said to Amasa, “Summon the men of Judah for me within three days, and be present here yourself.”

So Amasa went to summon the men of Judah, but he was delayed longer than the set time which he had designated for him.

And David said to Abishai, “Now Sheba the son of Bichri will do us more harm than Absalom; take your lord’s servants and pursue him, so that he does not find for himself fortified cities and escape from our sight.”

So Joab’s men went out after him, along with the Cherethites, the Pelethites, and all the warriors; and they left Jerusalem to pursue Sheba the son of Bichri.