Acts 17:5

But the Jews, moved with jealousy, and taking to themselves certain evil men of the rabble, and gathering a multitude, were setting the city in an uproar; and, assaulting the house of Jason, they were seeking them to lead them, forth to the populace.

1 Corinthians 14:20

Brethren, do not be children in mind; yet in evil be babes, but in mind be full-grown.

Titus 1:10

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

Hebrews 5:12

For even when, on account of the time, ye ought to be teachers, ye again have need that some one teach you the first elements of the oracles of God, and have become such as have need of milk, and not of solid food;

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, moved with jealousy, and taking to themselves certain evil men of the rabble, and gathering a multitude, were setting the city in an uproar; and, assaulting the house of Jason, they were seeking them to lead them, forth to the populace.
Titus 1:10
For there are many unruly men, vain-talkers and deceivers, especially those of the circumcision,