I used to think straightening things out for everyone was my job. LOL! Maturity has changed that. Now I just refer them back to God and the Word. He has given me the faith and the instructions to leave them to Him, unless He specifically tells me to step in and get involved.
I never argue scripture... it does more to hurt, than it does to help, anyone. Unfortunately, people follow teachers who impress them with their salesmanship and strength of personality and persuasion, so it is hard to convince them of anything different until that teaching has failed to ring true, or has failed them personally.
There was a really big demonstration of that when the "end of the world" theory proved to be a major deception for so many well meaning, but terribly deceived, people.
I knew some that were and their life was in shambles because of it. So very sad, but as hard as I tried, with all the love and compassion that God gave me for them, I could not get through to them.
God spoke something to me later that has proven to be true in so many other circumstances I have seen in other people's lives, even in my own children... "Sometimes failure is the only teacher some people will listen to." Then they ask the questions and look for the answers they should have been searching for all along.
I have had those lessons myself, many times, unfortunately! LOL! But I learned them well and that's what matters...line upon line...precept upon precept...here a little...there a little, is the way the Word explains it. I am grateful for ALL my lessons...even the hard ones! He is so good to care enough to teach me what I need to know. He is FAITHFUL!