Why should Christians not boast in their own works?

1 Corinthians 1:29 states that 'no flesh should glory in His presence,' reinforcing the idea that salvation is a sovereign act of God, not contingent on human efforts. In the context of boasting, the Apostle Paul emphasizes that if anyone has cause for boasting, it is in the Lord (1 Corinthians 1:31). Our justification and established relationship with God come purely from Christ’s righteousness and our faith in Him, rather than our adherence to the law or any good deeds. This understanding cultivates humility and reliance on God, rather than self-sufficiency.