https://www.mljtrust.org/sermons-online/acts-5-29-32/repentance-door-to-forgiveness/

What does it mean to follow Jesus? There are some Christians who say that following Jesus is merely an act of profession or bare intellectual assent. The New Testament tells something different about the Christian life. In this sermon on Acts 5:29–32 titled “Repentance: Door to Forgiveness,” Dr. Martyn Lloyd-Jones preaches the biblical message that following Jesus means believing Him and repenting of sins. To believe in Jesus is to believe in His message and obey it. According to the Bible, those who live in unrepentant sin and immorality but claim to be Christian are living a lie as there is no forgiveness without repentance. Dr. Martyn Lloyd-Jones is clear that repentance is not a work; it is simply what it means to be a follower of Jesus and a Christian. It also does not mean that Christians never sin, but only that they continually turn away from their sins and look to Christ. This is the most important message any can hear because it alone contains salvation. There is no salvation apart from repentance of sin and trusting in Jesus. This sermon asks all the crucial question: “do you believe in Jesus for the forgiveness of sins?”