'Excellency' in the Bible

"From: Claudius Lysias To: Governor Felix Greetings, Your Excellency:

"Your Excellency Felix, since we are enjoying lasting peace because of you, and since reforms for this nation are being brought about through your foresight, we always and everywhere acknowledge it with profound gratitude.

But Paul said, "I'm not out of my mind, Your Excellency Festus. I'm reporting what is absolutely true.

And I, brethren, when I came to you, came not with excellency of speech or of wisdom, declaring unto you the testimony of God.

But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.

Yea doubtless, and I count all things but loss for the excellency of the knowledge of Christ Jesus my Lord: for whom I have suffered the loss of all things, and do count them but dung, that I may win Christ,