When you choose songs for worship, you’re choosing the words that people will sing to God. That’s a huge responsibility, because your worship set should be teaching good, solid, and true theology to your congregation.
I’m a firm believer that worship leaders need to be students of theology. If you don’t know deeply what your church believes you can end up either choosing songs that are shallow or theologically weak or worse yet selecting songs that are contrary to your theology… Not every Christian song is fit for worship, and not every worship song should be sung in your church. There are many that conflict with your church’s theology and you’ll need to have a way to recognize and identify which ones can and can’t be used.