Psalm 60, of David, for Teaching,
Acts 26, Paul recounts his early life, his conversion, his life as a Christian, Agrippa is “Almost Persuaded”.
Jeremiah 30, Restoration of Israel.
Acts 25, Paul on Trial before Festus, Paul Appeals to Caesar, Trial before Agrippa.
The original Greek manuscripts indeed mentioned Augustus. Augustus himself died long before this, but his name invoked the highest reverence, and became a synonym for the Emperor, as was Caesar.