12 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 the sword of Yahweh, even pestilence in the land, and the angel of Yahweh destroying throughout all the borders of Israel. Now therefore consider what answer I shall return to him who sent me.'"
*Minor differences ignored. Grouped by changes, with first version listed as example.
And the angel of the Lord destroying - These words are not in Samuel, which puts the third alternative briefly. They prepare the way for the angelic appearance 1-Chronicles 21:16, on which the author is about to lay so much stress.
Three days - the pestilence in the land - In 2-Samuel 24:13 (note), seven years of famine are mentioned.
*More commentary available at chapter level.