What does the Bible say about strengthening brethren?

The New Testament emphasizes the importance of strengthening one another in the faith, as highlighted by Jesus' command to Peter in Luke 22:32: 'But I have prayed for thee, that thy faith fail not; and when thou art converted, strengthen thy brethren.' This charge signifies the duty of Christians to support and uplift fellow believers, particularly those who may be struggling in their faith. Strengthening one another is a key aspect of Christian fellowship, ensuring that believers can persevere in their spiritual journey. The Apostle Paul also reinforces this in various epistles, encouraging the church to build one another up in the faith, which is essential for the body of Christ to function properly and thrive.