Many people in the church seem to be concerned about false teaching/teachers, etc. So I did a quick bible study on the word “beware” in the NT, and it’s pretty revealing. The most mentions of the word “beware” are in the NKJV, and the extreme majority of the warning is to beware of “Pharisees and Sadducee’s and Scribes” (The nonspiritual, ultra-religious leaders). It’s because they are hell-bent on trying to force their unspiritual, deeply studied, ultra-religious, restrictions on people who don’t have the spiritual discernment to realize that these leaders are not of Christ’s Spirit and are simply trying to control them via their vast doctrinal knowledge & speaking skills so that their targets feel shamed & feared into following their particular view of pleasing God.
As Solomon said, there’s nothing new under the sun. Same junk is happening all through the church today.
Follow Christ and study the word by the Spirit folks, and you won’t come under false teaching. But the carnal brain can be convinced of many ungodly things.