1 Corinthians 3:3 - "For while there is jealousy and strife among you, are you not of the flesh and behaving only in a human way?"
One of my favourite U2 songs is a collaboration with Johnny Cash called The Wanderer, and it features the line "they say they want the kingdom, but they don't want God in it".
Many people say they believe in God, but they don't experience his loving presence. They may be active in Christian work, but only if they have their way. If they cannot be leaders, they refuse to be involved.
Because they refuse to allow God to fill their lives with his love, they remain weak and powerless.
Spiritual maturity means developing a greater love for others.
"When the love of Christ saturates you, immature attitudes such as pettiness, jealousy and strife are dissolved.
"It is only when you have an intimate relationship with the Lord that you receive sufficient grace to rise above this immaturity and enjoy the solid food that the Holy Spirit gives you." - Solly Ozrovech, A Shelter From The Storm