'Twelve Thousand' in the Bible

And the sons of Ammon saw that they had begun to stink before David. And the sons of Ammon sent and hired the Syrians of Beth-rehob, and the Syrians of Zobah, twenty thousand footmen, and from King Maacah a thousand men, and from Ishtob twelve thousand men.

And Ahithophel said to Absalom, Please let me choose out twelve thousand men, and I will arise and pursue after David tonight.