Generally speaking, elders or spiritually trustworthy men who are on their way to being elders should lead services.
When planning services, each pastor should do whatever works best for himself. That said, here is the broad outline of how one pastor does it (Mark Dever, senior pastor of Capitol Hill Baptist Church in Washington, DC).
The goal of service planning is to craft a unified service that clearly communicates the gospel, makes the sermon the centerpiece of the service, and impresses people with the glory of God.
A pastor or elder should generally plan church services because the whole service is part of the teaching ministry of the church, which is entrusted to the elders (1 Tim. 3:2; 1 Thess. 5:12-13).
The New Testament says that when churches gather they should read the Bible, preach the Bible, pray the Bible, sing the Bible, and see the Bible.
Some Christians think that as long as we’re sincere, we can worship God however we want. But throughout the Bible God shows us that he cares deeply about how he is worshiped, not only that he is worshiped.
What weight should be given to the preferences of non-Christians for what Christians do in their gatherings?9Marks
There are four biblical principles to keep in mind here.
First Corinthians 14 provides us with some of the most detailed instruction about the corporate gatherings of Christians in all of the New Testament. In this chapter, Paul explains that church services should primarily be for building up Christians.
False teaching changes, so old doctrinal boundaries do not always protect against new problems. But how can we know when we need new boundaries? We can discern when we need to erect new doctrinal boundaries when:
The Bible promises that God will transform human culture in the end. Doesn’t that mean we should be engaged in that work now?9Marks
No. Just because God is doing something doesn’t mean we should or are able to do it.