“Then he called two of his centurions and ordered them, ‘Get ready a detachment of two hundred soldiers, seventy horsemen and two hundred spearmen to go to Caesarea at nine tonight. Provide horses for Paul so that he may be taken safely to Governor Felix.’”
God has all things at his disposal. The Sadducees had 40 men take a vow to kill Paul. God uses Paul’s nephew to overhear the plot and warn the Tribune, the commander of the military detachment there. The commander is very receptive to hearing from Paul’s nephew and fears for Paul’s life. Although Paul is being accused by the religious leaders, he’s broken no Roman law and, as a Roman citizen, must be protected.
The Roman commander, also being used by God, arranges for Paul to be shuttled out of the city under heavy protection and cover of darkness. And Felix, the governor of the area, is used by God to hide Paul in one of Herod’s palaces to await his accusers.
Sometimes God uses angels and earthquakes, and sometimes He uses ordinary people and their circumstances. Either way, God is protecting his servant from harm at the hands of the Jewish Sanhedrin, and is fully in control.