This section shows that even though men appear to be in control, God is sovereign over all. He has a plan and will do His will. Isaiah 46:10; Proverbs 21:30
For Paul, now in chains, God is at work. He is a prisoner of the Lord (Eph 3:1; 4:1; Philem 1, 9) and this is no shame. He will be faithful until his last breath.