There are millions of teachers. Here is a warning from the apostle Paul: they are not all right.
“But they are a teacher, how can a teacher be wrong?”
Just because someone is a good teacher, or a good speaker does not mean they are a good student. Every false Bible teacher has failed as a student of the Bible.
You can teach anything from the Bible if you leave out enough details or add enough commentary. Yet, you cannot be a good student of the Bible unless you confine your study to the Bible: every detail, nothing more.
How do you save yourself from being captive to false teaching? Do not study a teacher, study the Bible. Teachers need checked by scripture; good students do the checking. You do not need to teach a lesson or preach a sermon to do a Bible study.
False doctrine can be taught well. It can sound good (Rom 16:18). It just does not sound like the Bible, for those who have ears to hear. Be a good student of the Bible.
Teachers are fallible, the Bible is not.
Let God be true,
Justin “student first” Johnson