Acts 17:5
This offended the Jews and they gathered some unprincipled loafers, formed a mob and started a riot in the town. They attacked Jason's house, to find them and bring them out among the people.
1 Corinthians 14:20
Brothers, you must not be children mentally. In evil be babies, but mentally be mature.
Titus 1:10
For there are many undisciplined people, who deceive themselves with their empty talk, especially those of the party of circumcision.
Hebrews 5:12
For although from the length of your Christian experience you ought to be teaching others, you actually need someone to teach you over again the very elements of Christian truth, and you have come to need milk instead of solid food.