A problem that is common to every believer in Christ is dealing with one’s own inner self. And our confidence in that self.
Yet, despite the reality of our evil inner man, the idea that self-confidence is a bad thing is rejected within Evangelicalism today.
Because self-esteem teaching has permeated the church. Thanks to a number of “Christian psychologists” who have pushed this thinking. Even going so far as to say that having a lack of self-esteem is the real definition of sin. Which is an idea popularized by the late Robert Schuller, the “positive thinking” preacher.