Why is community so important?

Why is Community so Important? (in the life of a follower of Jesus)

We aren't meant to walk through this life alone.  From beginning to end you see humanity living in a close relationship with others.

Genesis 2:18 - It isn't good that man should be alone. 
True for all of us!

Why?
1.We all have a tendency to put ourselves at the center of the universe. Being around other people causes us to see that we are NOT the center. Arguments and fights in society are usually caused or made worse by the selfish nature of all people.
Philippians 2:3 
Galatians 6:2
Romans 12:18 
We learn about ourselves because we are forced to learn to get along with other people!

2.We will all need help at some time or another.
Ecclesiastes 4:12 
Ephesians 4:11-16 
The church is uniquely equipped to build up each other!

3.In some little ways we learn about forgiveness. It makes what God did more understandable and awesome! It is difficult for us to forgive little things.
Ephesians 4:32 

4.God has chosen to use as the vehicles for His message of reconciliation to the world.
2 Corinthians 5:20
It is crazy to know that God invites us in to be a part of His mission to the world.

Conclusion
So what do we do with the knowledge that God has called us to be in the world but not of the world? Light bringers united in His marvelous body, the Church?
Ephesians 4:1