Tell them that. There's always going to be elements we won't comprehend of course and we need more than the creed for proper understanding. We need relationship to Him and to know Him better appeals to some much more and we can have deeper understanding and bridge the doctrines if we let God do that for us in His time and way but most prefer intellectual snobbish theological Phariseeism which is logic based. Some are comfortable with just basic understanding but over many years as an intercessor I have desired deeper understanding which enables the Bible to flow together plus His creation, our own horrors we've endured can get explanations if we'll ask Him, wait, study and meditate on scripture and theological things but fact check everything with God directly instead of reading God's word through a theological lens. 5 point Calvinists are intellectual bullies who have created more division and condemnation and despair than other legalistic Christians and sometimes 4 point can be still too Calvinist instead of just Christians who comprehend Calvinistic doctrines easier but they're abandoning legalism, but not 3 point Calvinists. They're in a good place as are 3 point Arminians. 4's can be legalistic but still Christians but 5's are either semi-Palagians or semi-Gnostics and oblivious to their horrible behavior. There's nothing wrong with desiring a deeper knowledge but it must be God led in His way and timing. To not learn more isn't safe either since theological bullies can subtly dupe them but if we go to God in private prayer each day and ask for wisdom & discernment, James 1:5, neither devils nor the deceived can touch us plus it's so joyous to learn & deepens oneness. 5 point Calvinism dominates Christianity nowadays outside of obvious heresies & it's dangerous.