I think that a church should be setting the pace for social justice.
When no one is watching, live as if someone is.
We celebrate the First Advent to whet our appetites for the Second. We long for the next coming.
The purpose of the Bible is simply to proclaim God's plan to save His children. It asserts that man is lost and needs to be saved. And it communicates the message that Jesus is the God in the flesh sent to save His children.
You are God's child. His creation. Destined for heaven. You are a part of his family.
I think the current book [for Christian apologetics] is by Lee Strobel, its called A Case for Christ.