You can be straight as a gun barrel theologically, and as empty as one spiritually.
A.W. Tozer (Pastor, Preacher)
This is the difference between religious people and people that have been born again and are full of the Holy Spirit. The religious person can know all sorts of correct doctrines and teachings, but be dead spiritually. For they do not have a personal relationship with the LORD. Where I have seen people who do not know all of the teachings in the Word of God (The Holy Bible) yet are full of the Holy Spirit and are alive spiritually doing the work of the LORD, loving on people.