King James Bible
"Confirming the souls of the disciples, and exhorting them to continue in the faith, and that we must through much tribulation enter into the kingdom of God."
Paul and Barnabas strengthened the inner resolve of new believers through teaching and encouragement. This spiritual fortification was crucial for young churches facing persecution in cities where they had recently been stoned and expelled. The apostles urged persistent loyalty to the gospel message despite hardships. Their exhortation emphasized faith as an ongoing commitment requiring endurance, not merely an initial decision. Paul presents suffering as the normative path to God's kingdom, not an exception. This teaching prepared believers for inevitable persecution while framing their trials as participation in Christ's sufferings rather than signs of divine abandonment.