Ever hear someone preaching and you say to yourself where did they come up with this?

... vain jangling;  Desiring to be teachers of the law; understanding neither what they say, nor whereof they affirm.

1 Timothy 1: 6-7

If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain. James 1: 26

These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so    Acts 17: 11

Search for yourself to see if things are true or if they have been taken out of context

For there are many unruly and vain talkers and deceivers, specially they of the circumcision:  Whose mouths must be stopped, who subvert whole houses, teaching things which they ought not, for filthy lucre's sake. Titus 1: 10-11