1 Chronicles 21:4-8

Nevertheless the king’s word prevailed against Joab. Wherefore Joab departed, and went throughout all Israel, and came to Jerusalem.

And Joab gave the sum of the number of the people unto David. And all they of Israel were a thousand thousand and an hundred thousand men that drew sword: and Judah was four hundred threescore and ten thousand men that drew sword.

But Levi and Benjamin counted he not among them: for the king’s word was abominable to Joab.

And God was displeased with this thing; therefore he smote Israel.

And David said unto God, I have sinned greatly, because I have done this thing: but now, I beseech thee, do away the iniquity of thy servant; for I have done very foolishly.