What does it mean to have confidence in our flesh?

To have confidence in our flesh refers to trusting in our own abilities, actions, or morality for righteousness, which the Bible clearly warns against. Romans 8:8 states that those who are in the flesh cannot please God, highlighting that reliance on our own strengths leads to spiritual failure. This self-reliance is rooted in pride and can lead to condemnation, as it underestimates the severity of our sinful condition and the need for divine grace. Salvation and acceptance before God come solely through the finished work of Christ, not through our flesh.