Many worship services in modern churches tend to be informal. The model is often that of a concert or entertainment event, with a very “come as you are” attitude toward visitors. Consequently, when someone joins one of our churches Sunday morning for worship, often the most obvious difference in our worship approach (which is evident to them in the first five minutes) is the concern for reverence and dignity, and what comes across as “formality.” The more common approach has often been called “seeker sensitive,” and some might be excused for thinking that our approach is actually closer to “seeker hostile.”
Probably the biggest issue for someone who is unaccustomed to this kind of worship is the question of insincerity. Many of us have been taught that if it is “scripted,” then it must be insincere. If our worship services have a “bulletin” with all the elements of the worship service laid out beforehand, then what has happened to the possibility of the Spirit leading us in the course of the service? If a service is hypocritical and insincere, then that is obviously not the Holy Spirit’s work—on that we certainly can agree.
But we don’t think this way about other activities that must be planned out beforehand. If you had the privilege of seeing a Marine Corps precision drill team, would you wonder if they “really meant it?” If you took your wife to see a performance of the Nutcracker at Christmas time, would you walk out shaking your heads at all the insincerity because the music was exactly the same as last year?
The reason we approach worship this way is because we believe that God requires a cultivation of reverence from us. "Therefore let us be grateful for receiving a kingdom that cannot be shaken, and thus let us offer to God acceptable worship, with reverence and awe, for our God is a consuming fire" (Heb. 12:28-29, ESV). This is what we are seeking to do. We see here in this passage that worship can be unacceptable to God, and two of the things that would make it unacceptable would be a spirit of irreverence and an attitude inconsistent with awe. Sadly, that is often what can happen with informal worship services.
As far as the “scriptedness” is concerned, we would point to where the apostle Paul rejoiced in the “good order” of the Colossian church (Col. 2:5). The word there is a military one, which could be rendered as regimentation—like the drill team we mentioned just a moment ago. At the same time, we want to avoid the sins condemned by Jesus when He warned us about flowing robes (Mark 12:38), wide phylacteries (Matt. 23:5), lengthy prayers (Matt. 23:14), fancy religious titles (Matt. 23:7), and other forms of ecclesiastical showboating. But preparation to offer God what He requires is not the same thing as over-decorating what He did not require.
The CREC stands for the Communion of Reformed Evangelical Churches. You can find out more here or here.