How do I recognize false teachers?

Though contemporary society can shy away from such a question as “too judgemental,” to do so is actually spiritually injurious; Jesus and the Apostles commanded us to be alert (Mt 7:15).

Often we can tell a false teacher by measuring their truth/teaching by the standard of the Gospel or the “faith once for all delivered to the saints” (Gal 1:8; Jude 3).

Another way is to watch out for polluted behaviour because bad beliefs produce bad behaviour (or faith produces the fruit of faith and visa versa).

Scripture lays down some other methods to be sure, however, in reading John 7:18 I was struck by another, which taken with the others, provides a helpful test:

The one who speaks on his own authority seeks his own glory; but the one who seeks the glory of him who sent him is true, and in him there is no falsehood.

This is in the context of Jesus telling the truth and seeking His Father’s glory in contrast with the religious leaders, but it sheds light on the false teachers we may face too. False teachers are: 1) proud (even if mildly concealed), 2) which works out in a promotion of their own thoughts (vs. God’s truth) and 3) for their own glory, or so that others would think well of them (think cult) rather than praise God. This can be true of preachers or people; but regardless of the context are three things we all need to be on the lookout for.