In his greeting, Paul previewed coming attractions in the rest of the letter, including the main event of Christ’s humiliation and exaltation.
No matter how long we have been Christians, we can always keep growing more and more in purity and love.
As Paul demonstrated in his trial before Governor Felix, Christians must testify about Christ with our words and with our lives.
Christian thinking is thinking like Jesus, especially as seen in his becoming one of us to die on the cross.