Christians are COMMANDED to...
1 Timothy 4:1-2
1. The Spirit clearly says that in later times some will abandon the faith and follow deceiving spirits and things taught by demons.
2. Such teachings come through hypocritical liars, whose consciences have been seared as with a hot iron.
1 Timothy 4:6
If you point these things out to the brothers, you will be a good minister of Christ Jesus, brought up in the truths of the faith and of the good teaching that you have followed.
1 Timothy 4:11
Command and teach these things.
1 Timothy 6:3-5
3. If anyone teaches false doctrines and does not agree to the sound instruction of our Lord Jesus Christ and to godly teaching,
4. he is conceited and understands nothing. He has an unhealthy interest in controversies and quarrels about words that result in envy, strife, malicious talk, evil suspicions
5. and constant friction between men of corrupt mind, who have been robbed of the truth and who think that godliness is a means to financial gain.
2 Timothy 1:13
What you heard from me, keep as the pattern of sound teaching, with faith and love in Christ Jesus.
2 Timothy 2:15-17
15. Do your best to present yourself to God as one approved, a workman who does not need to be ashamed and who correctly handles the word of truth.
16. Avoid godless chatter, because those who indulge in it will become more and more ungodly.
17. Their teaching will spread like gangrene.
2 Timothy 3:16-17
16. All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness,
17. so that the man of God may be thoroughly equipped for every good work.
2 Timothy 4:3-4
3. For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear.
4. They will turn their ears away from the truth and turn aside to myths.
Titus 1:11
They must be silenced, because they are ruining whole households by teaching things they ought not to teach--and that for the sake of dishonest gain.