Joab gave up the sum of the numbering of the people to David. All those of Israel were one million one hundred thousand men who drew sword: and in Judah were four hundred seventy thousand men who drew sword.
"The version of the incident in the Book of 2 Samuel [1 Chronicles 24:1] gives an underlying theological perspective, while the Chronicler simply describes what happened from a human perspective." [Note: The NET Bible note on 21:1.] 