Pastor Kenneth starts a new sermon series titled "Killing What's Killing You," addressing the spiritual dangers of sin and the need for its mortification in our lives. He emphasizes trust issues people may have, using a personal analogy from car maintenance, to illustrate how sin can remain hidden until it manifests destructively. Through Romans 8, he discusses the importance of placing faith in Christ and engaging in the process of sanctification, which requires intentional effort to put sin to death. Ultimately, Pastor Kenneth urges the church to actively confront their sins, inviting Holy Spirit to lead them in this spiritual battle for a life aligned with God's will.