This Sunday we will hear from Romans 12:3-8.  In it, Paul encourages Christians to adopt an attitude of humility - recognizing that they are but a small part of a larger entity.  They are a member of the church.  As such, they have responsibilities to their fellow church members - to love them and serve them.  And God has called all believers, as members of the church, to love and serve one another in their own distinctive, particular ways - in order to build one another up, and to glorify God.

Resources
How To Prepare For Sunday