But what things were gain to me, these I have counted loss for Christ. (Philippians 3:7)
Becoming a Christian always involves change. There can be no new life without putting to death the old life. There can be no new way of living without stopping the old way of living. In this sermon on Philippians 3:7, Dr. Martyn Lloyd-Jones discusses the conversion of Paul and the particular hindrances that were present for Paul, and can still hinder people from coming to the Lord. Paul could have boasted in his birth as a Jew, his ability and knowledge as a Pharisee, and his zeal and sincerity as a persecutor of the fledgling church. Paul came to understand that none of these things could save his soul.
Many people think that to be a Christian is to be sincere, knowledgeable, and zealous about God and what they perceive as good things. However, none of these address their relationship with God or their sin. In fact, Paul counted all of these things as refuse in comparison with knowing Christ. Furthermore, no one can seek out God by the strength of his own mind. If anyone is to know God it will be through God's self-revelation through His written Word, and by the convicting and regenerating work of the Holy Spirit. Dr. Lloyd-Jones also discusses the evidences of a changed mind and life in the person who is truly converted, and implores his listeners to examine themselves.