Acts 17:5

But the Jews who believed not, filled with zeal, taking to them some of the mean and profligate fellows, and making a mob, set all the city in an uproar; and assaulting the house of Jason, sought to bring them out to the people.

1 Corinthians 14:20

Brethren, be not children in understanding: in wickedness be ye as infants, but in understanding be ye grown men.

Titus 1:10

For there are many unruly vain-talkers and deceivers, especially they of the circumcision,

Hebrews 5:12

For when for the time ye ought to be teachers, ye have need that one teach you again, which are the first principles of the oracles of God, and are become such as have need of milk and not of strong meat.

Treasury of Scripture Knowledge

Summary

And there are gathered unto him vain men, the children of Belial, and have strengthened themselves against Rehoboam the son of Solomon, when Rehoboam was young and tenderhearted, and could not withstand them.

Bible References

Vain men

Acts 17:5
But the Jews who believed not, filled with zeal, taking to them some of the mean and profligate fellows, and making a mob, set all the city in an uproar; and assaulting the house of Jason, sought to bring them out to the people.
Titus 1:10
For there are many unruly vain-talkers and deceivers, especially they of the circumcision,