The Need to be Teachable and Correctable
Shame will only be on those who refuse biblical correction and think they know everything already (Proverbs 12:1). Truly, none of us like to be corrected, but the righteous receive rebuke gladly because it directs us into the way of life (Proverbs 10:17).
I used to believe the heresy that a Christian could lose their salvation and that a genuine believer could have a demon in him. When confronted with the scriptural truth, it took some time, but I eventually came to the place of repentance according to God's grace (2 Timothy 2:25).
My friend once shared a helpful illustration: if I was eating a meal every single day for 20 years that I thought was healthy, but someone pointed it out that it was actually very bad for my body, would I keep eating it or would I stop? Bad doctrine is likened to that deceptive diet that brings defilement into our lives (Mark 7:20-23). Without question, God wants what is best for us, but we must be willing to let Him lead us in everything (Proverbs 3:5-6).
There is no shame in being deceived for we all stumble in many ways (James 3:2). But truly there is shame when we are confronted with the truth and choose to resist it because of our own pride and ego or because we don't want to change because we love a church denomination or theological system (Proverbs 29:1).
Nonetheless, the Lord is gracious and knows our frailty (Psalm 103:14). He is very patient with us for He longs for us to walk closer to Him and have a greater understanding of His word and will (2 Peter 3:9). We must have the humility to be teachable and moldable like children (Matthew 18:3-4).
Regardless of how long we believed or taught something, we must be willing to let it go, confess publicly that we were wrong, and turn from it (James 5:16). The Lord will exalt those who are humble, but those who are proud He will resist, and they will be put to shame if they never repent (James 4:6, 1 Peter 5:5).