I've discovered something about spiritual growth and maturity that really isn't that profound. It is, however true:
"Knowing and not doing" = Pride, Bitterness, or Both.
"Doing and not knowing" = Pride, Bitterness, or Both.
I believe this basic "formula" is true with rare, if any, exception.
Have you ever known anyone who knows a LOT of Bible, but they are also snobby, obnoxious, uncaring, unkind, ungenerous and cranky?
How about someone who is a dizzying display of service, volunteering, hard work and "spiritual" activity, but they are also snobby, obnoxious, uncaring, unkind, ungenerous and cranky?
One without the other leads to an arrogant attitude or a bitter spirit. Or both.
Many people have not grown past the last thing God told them to do. And others have not stopped long enough to know what God is telling them to do.
Spiritual maturity is not just about how much you know. It's about what you do with what you know. It's also about how much your life is reflecting the One you are following.
And becoming Christ-like is the goal.