In the reformed community we have the right truth (more or less) however, we reverse the order in which we should learn it. Many times we spend so much time on learning correct theology in our minds, however it doesn't connect with our ...heart and thus we strive in the flesh to practice these theological truths in our day to day lives by remembering them in our minds and it fails.
This is because the understanding of these truth should actually come from the HEART, Then to our mind and out of our mouths.
When it comes to the great theologians they did not come up with the doctrine from a scholarly study using human means. Instead they were gifted by the Spirit to communicate biblical truth to the rest of the body. They understood the truth in their HEART first and then from there to their mind and to preaching or writing.
We can know these truths in our head but only God can bring it to life in our hearts.
Many people know that Christ died for our sins, few believe they are sinners (its heart issue)
ex. "The foolish says in his HEART" (Psalm 14) note he says in his heart, not head!)
Love the Lord your GOd with all your heart, soul, mind, and strength!" (Luke 10:27)
The order in which Christ says it is of course important Heart to soul then to the mind. So yes the mind is important as well!
When we have truth in our mind and not the heart it could become dangerous because it gives us the illusion that we are growing and spiritual when the real test is the fruit of the Spirit. In short theology becomes an idol and a way for our flesh to boast.
1 Now about food sacrificed to idols: We know that “We all possess knowledge.” But knowledge puffs up while love builds up. 1 Corths 8:1
The line here I want to key on it is knowledge puffs up but love builds up.
What this tells us is that when interacting with other believers it is not wrong to talk theology, but the more benefically thing to do is love them, better yet "speak truth in love"
How do we know its in love?
Ask yourself: By me saying this will it make me look good or God look good and turn the eyes of this brother or sister to Christ?
That being said you may still feel pride in doing so HOWEVER
...that does not mean you were not doing it in love because God works in our weaknesses but also because love is not a feeling but a choice.
Our unbelief as believers in miracles that we hear about such as healings and other things and our uncomfortable feelling in Spirit filled meetings comes because we have learning in our minds but our hearts are still filled with unbelief! We are trying to understand the impossible and the unlimited in our limited minds. When we try to understand God and His might in only our fallen minds..it doesnt work we will have a brain fart. We can only see God rightly in our heart through faith by the Spirit of Christ.
Lord, Do It Again! from The Gospel Coalition on Vimeo.