We can not minimize the responsibility of a Christian singer, since he is the one in charge of singing lyrics during the worship service in the place where we congregate. It is assumed that being a Christian singer is not simply the art of singing with a beautiful voice, but it is a person who transmits teachings through this talent.
We must understand that Christian music, in addition to glorifying God, is about teaching the people who are gathered there. Do you remember the book of Psalms? Does not this book have a high theological content? It is not just about poetry or beautiful verses, the book of Psalms deals with passages that are really profound and that always give glory to God. I can not imagine David or the other psalmists being neophytes, I imagine them being great leaders who handled the Scriptures with great precision.
We are not saying that it is mandatory for a Christian singer to go to a theology school, although that would be best. But we are saying that a Christian singer should handle the Scriptures well, since he is a minister of music and Christian music contains theology, I say, it contains it if they are really songs based on the Bible.