At the heart of confidence is action. It’s the willingness to try. If you try you’re not going to die, you’ll learn something. When you learn something, it removes a little bit of the insecurity so it makes it slightly easier to try again.
Philippians 4:13 - I can do all things through Christ who strengthens me.
(contextually, this is “ can overcome all things” or I can get through all things”)
What are you confident in?
What about for the child of God?