This is a very important question. Perhaps you know someone who at some point or another evidenced a personal walk with God or the fruits of the Christian life in some way and then they fell away from God. Or perhaps that person is you. Either way, I want to encourage you to follow a short series (of two parts) from John Piper. Basing his presentation on Hebrews 3:12-14, he presents his biblical discoveries concerning this key passage. Part 2, coming later, will establish the necessity for believers to exhort one another in the faith. Click here to see this 7 minute presentation.