What does it mean to be strengthened in the inner man?

In Ephesians 3:16, Paul prays for believers to be strengthened with might by the Spirit in the inner man. This strengthening is not a physical enhancement but a spiritual empowerment that enables believers to withstand trials and maintain faithfulness amidst adversity. The inner man represents our true self, where the Holy Spirit works to renew and transform us according to God's will. As believers look to Jesus, the author and finisher of their faith, they receive the strength to persevere. Strengthening comes through continual reliance on God’s Word, prayer, and the fellowship of the Holy Spirit, which collectively fortify believers against the faint-heartedness that life’s challenges may induce.