But later Paul and John Mark are reconciled and presumably Paul and Barnabas, as well.
These men must have finally realized the need to seek reconciliation because they, themselves, were reconciled to God in Christ.
Col 1:20-22 says we are reconciled in the body of His flesh through death, to present you holy and unblameable and unreprovable in His sight, if you continue in the faith grounded and settled and be not moved away from the hope of the gospel…
This reconciliation of men to God and men to men is accomplished through the body of His flesh through death. The result is that we are presented before God as holy, unblameable and unreprovable in God’s sight. That is powerful language.
That is how you sit here in God’s presence, as long as you continue in the faith grounded and settled. You are reconciled. Holy. Blameless. Without reproof. This is the power of the gospel.