Closing appeal for steadfastness and unity

4 Therefore, my brothers and sisters, you whom I love and long for, my joy and crown, stand firm in the Lord in this way, dear friends!

¹³ Be on your guard; stand firm in the faith; be courageous; be strong.

¹² That is why I am suffering as I am. Yet this is no cause for shame, because I know whom I have believed, and am convinced that he is able to guard what I have entrusted to him until that day.