The Importance of Idolatry in the Christian Life

If the New Testament writers weren't freely using idolatry as a metaphor for sin in the Christian life, why should we do it? Now of course people who give these sermons or talk this way will dive into the Old Testament. The Old Testament is rife with the sin of idolatry, absolutely rife with it. It's clearly central there. And so modern interpreters, andachronistically pile a Christian life back onto the Old Testament instances of idolatrism. I think that's all distorted and somewhat sinister because I don't think it's the gospel.