Someone asked me this before, and at that time, i shamefully admit that i was a fake Christian, and didn't know how to respond. So I have been on the lookout ever since for a life verse, and i have been posting this verse in my profile for quite some time now.
What's the importance of a life verse? well personally since you consider it yours, its personal already. Part of your identity, and its something i am striving to live by - striving not by my own efforts of course, but with the help of Christ and the Holy Spirit.
So here is the life verse of KPCC from Galatians 2:20-21
"I have been crucified with Christ and I no longer live, but Christ lives in me. The life I live in the body, I live by faith in the Son of God, who loved me and gave himself for me. I do not set aside the grace of God, for if righteousness could be gained through the law, Christ died for nothing!"
What is your life verse?