Take a few moments to read Clint Archer’s “5 Signs of Spiritual Maturity.” I think his opening words emphasize well the importance of spiritual maturity…
Let me start by saying that it’s not wrong for a new believer to be immature any more than it’s wrong for a child to be childish.
Puerility is only annoying in an adult. When a four year old dons a cape and wears his underwear over his pants, claiming x-ray vision, it’s cute. When his dad does that, it’s concerning (or certifiable).
When you’ve been a believer for many years though, lack of these indicators should be concerning.