In the sermon "Hope in Action" by Pastor Michael Wurz, he emphasizes that people desire improvement in four areas of life: relationships, finances, physical well-being, and spirituality. He urges the congregation to overcome resistance to change and put hope into action by applying God's word to their lives. Pastor Wurz refers to 1 Peter 1:13-14 and encourages proactive steps, such as defining the problem, seeking God, and doing the work necessary for change. He reminds the congregation to stay focused, find accountability partners, and invite others to join their journey of change. Ultimately, he encourages reflection, seeking God's guidance, and taking action to achieve their goals.