Here is an interesting concept: The church is a place where we help people grow up! We have a Father and the Father wants us to grow up in Him from kids to maturity. Jesus accepts us for who we are but wants us to become like who He is. Maturity is the goal according to Paul in Ephesians 4.
Think about some of the implications of this. Many people expect the church to be the source of their spiritual growth. That is the perspective of immaturity. Growing up means that I take responsibility for my spiritual life and don't outsource it to others.
How many congregations deal with petty conflicts? Growing up means that we treat one another with honor and dignity, allow others to think differently than ourselves and living in peace rather than in conflict.
Many leadership groups in the local church find it hard to agree to corporate decisions. We want our way like toddlers who won't let others play with their toys. Growing up means that we have respectful discussion, make corporate decisions and agree to live by them.
Often our congregations think that the church is primarily for their benefit. Growing up means that we choose to live like Jesus and reach out to those who are not yet in the church. If the church is about me I am living from immature selfishness. If the church is about others who need to hear the Good News I am living in maturity and generosity.
Growing up is a great metaphor for what the church is about and what the Christian life is about. Where do you (and I) need to grow up? Where does our congregation need to grow up?