The 5 Marks of an Authentic Christian are–
1. We love God and others deeply. We love them more than we love ourselves.
2. We obey faithfully. We are concerned with what God wants rather than what I want.
3. We live authentically. We are the same person Sunday morning as we are on Saturday night.
4. We want to know Him more and more.
5. We live with greater confidence because of our hope in Christ instead of in a spirit of fear.
These came from a sermon by John MacArthur on John 15.