God desires to be acknowledged as holy by those who approach Him in worship (e.g. Lev. 10:3; Heb. 12:28-29). Thus we must approach Him on His own terms. His terms are dictated to us in the Bible, and we can summarize those terms by what is known as the biblical “Regulative Principle of Worship”. The RPW stated simply is, do what God commands, and whatever is not commanded, do not do (Deut. 12:32).
In accordance with the regulative principle of worship we have a Christ-centered, Word-oriented worship service. We begin with a call to worship from the Word and come in Christ’s merits into the presence of God. We pray according to the Word and in Christ’s name. We sing the Psalms—the songs of the Word—exclusively (and without musical accompaniment), as they primarily speak of Him (e.g. Luke 20:42-44). We hear the Word read—the Word of Christ (Rom. 10:17). We hear the Word preached—Christ and Him crucified. We leave being blessed by the benedictions from the Word—the blessing of Christ. We desire, above all, to be pleasing to God in our worship. And thus, our worship is not entertainment, but a reverent, yet joyous time of praising and adoring our triune God and the salvation He has provided for His people.