The people through whom God accomplishes his purposes are not always the guys at the top of your list or mine.
Sure, once in a while there’s a Moses or a David that comes on the scene and is almost singularly responsible for changing the course of a nation, reshaping popular opinion, or in some measure reversing a seriously destructive spiritual trend. From the safety of ample historical distance, it seems to us like God made a couple of good calls there — as he did with Joshua, Nehemiah, Hezekiah (for the most part), and many more.
But in the Old Testament, for every one of those obvious-in-hindsight choices, there’s a Jehu, a Samson or a Joab running around stabbing, pummeling, dropping houses on people or feeding evil queens to the neighborhood canines.