1 Chronicles 21:9

But he didn’t count Levi and Benjamin among them, for the king’s word was abominable to Joab.

God was displeased with this thing; therefore he struck Israel.

David said to God, “I have sinned greatly, in that I have done this thing. But now put away, I beg you, the iniquity of your servant, for I have done very foolishly.”

“Go and speak to David, saying, ‘The LORD says, “I offer you three things. Choose one of them, that I may do it to you.”’”

So Gad came to David and said to him, “The LORD says, ‘Take your choice:

either three years of famine; or three months to be consumed before your foes, while the sword of your enemies overtakes you; or else three days of the sword of the LORD, even pestilence in the land, and the LORD’s angel destroying throughout all the borders of Israel. Now therefore consider what answer I shall return to him who sent me.’”