"The Bible's purpose is not so much to show you how to live a good life. The Bible's purpose is to show you how God’s grace breaks into your life against your will and saves you from the sin and brokenness otherwise you would never be able to overcome... religion is 'if you obey, then you will be accepted'. But the Gospel is, 'if you are absolutely accepted, and sure you’re accepted, only then will you ever begin to obey'. Those are two utterly different things. Every page of the Bible shows the difference."
A few days ago I posted a prayer by Tim Keller. The dude is a stud. I was priveleged to hear him speak at the 2006 DesiringGod National Conference, and he blew me away. Seeing his desire to spread the hope of the gospel in the inner-city was a great inspiration to me. I would encourage you to read or listen or blog as much as you can from Tim Keller.