The appeal to Caesar should be felt as a slap in the face of Festus. It is saying that there is no legal grounds for him to have made the judgment that he made, his motives are obvious and exposed, and that as a Roman citizen I have the right to appeal to a greater/wiser authority than you Festus. Thanks for wasting all this innocent citizen's precious time (my words not his).
Isn't he playing the situation down for the King? Sending him to Jerusalem would be determining a death sentence to Paul. The reason Paul is even in Felix's keep is because of a plot of forty men to ambush the city guard in order to kill Paul.
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