Acts 17:5

But the jealousy of the Jews was aroused, and, calling to their aid some ill-conditioned and idle fellows, they got together a riotous mob and filled the city with uproar. They then attacked the house of Jason and searched for Paul and Silas, to bring them out before the assembly of people.

1 Corinthians 14:20

Brethren, do not prove yourselves to be children in your minds. As regards evil, indeed, be utter babes, but as regards your minds prove yourselves to be men of ripe years.

Titus 1:10

For there are many that spurn authority--idle, talkative and deceitful persons, who, for the most part, are adherents of the Circumcision.

Hebrews 5:12

For although, considering the long time you have been believers, you ought now to be teachers of others, you really need some one to teach you over again the very rudiments of the truths of God, and you have come to require milk instead 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 jealousy of the Jews was aroused, and, calling to their aid some ill-conditioned and idle fellows, they got together a riotous mob and filled the city with uproar. They then attacked the house of Jason and searched for Paul and Silas, to bring them out before the assembly of people.
Titus 1:10
For there are many that spurn authority--idle, talkative and deceitful persons, who, for the most part, are adherents of the Circumcision.