Pastor Dave's sermon, "Living Hope: Preparing Now for Heaven's Glory," emphasizes the Christian hope for heaven and eternal life through Jesus Christ. He discusses the longing for a future free from sin, death, and earthly struggles, drawing from biblical passages like 1 Peter 1 and Luke 20. The sermon also encourages believers to prepare for eternity by living out their faith, serving God, and engaging in Christian community in the present. It highlights how many aspects of current human experiences, such as marriage, politics, and time, will be transformed in the new heaven and new earth, where God's direct reign eliminates the need for human institutions. Ultimately, the message is one of joyful anticipation for God's ultimate victory and the glorified existence believers will share in Christ.