Many Christians recognize that singing is a key part of the church’s worship, yet few stop to consider why. Why does God command His people to sing, and what should our singing accomplish? In this sermon from Ephesians 5:18–20, we’ll explore how Spirit-filled singing glorifies God, builds up the church, and strengthens our hearts. Singing is not merely a tradition or an emotional outlet — it’s a powerful means of declaring truth, expressing gratitude, and encouraging one another in Christ.