I have known a few men that I could not figure out. I got close to them and they seemed to be real in their relationship with God. But the closer I got to them God revealed to me something about the men. There are men without roots in God and there are those who have spent their life deepening their life into God.
Men who have their roots into God have fresh manna overflowing their life. Those who don't have roots simply echo what they have heard from others.