NOT SELF CONFIDENCE BUT GOD CONFIDENCE

…Put no confidence or dependence [on what we are] in the flesh and on outward privileges and physical advantages and external appearances.
- Philippians 3:3

Everyone talks about self-confidence. All kinds of seminars are available on confidence, both in the secular world and the church world. Confidence is generally referred to as "self-confidence" because we all know that we need to feel good about ourselves if we are ever to accomplish anything in life. We have been taught that all people have a basic need to believe in themselves. However, that is a misconception. Actually, we do not need to believe in ourselves—we need to believe in Jesus in us. We do not dare feel good about ourselves apart from Him. In the above scripture, when the apostle Paul instructs us to put no confidence in the flesh, he means just what he says—do not put confidence in yourself or in anything you can do apart from Jesus.

We do not need self-confidence; we need God-confidence! Many people spend their whole lives climbing the ladder of success only to find that when they get to the top, their ladder was leaning against the wrong building. Others struggle, trying to behave well enough to develop a measure of confidence in themselves, only to endure repeated failures. Both of these activities produce the same results: emptiness and misery.

I have found that most people fall into one of two categories: (1) They never accomplish anything, no matter how hard they try, and end up hating themselves because of their lack of achievement, or (2) they have enough natural talent to accomplish great things, but take all the credit for their achievements, which fills them with pride. Either way, they are a failure—in the eyes of God. The only truly successful person in God's eyes is the individual who knows he is nothing in himself, but everything in Christ. Our pride and boasting are to be in Jesus alone, and He is to have all the glory (credit due) for whatever accomplishments we may achieve.
http://www.loveofgodoutreach.org/2016/08/not-self-confidence-but-god-confidence.html