Luke 5:8

Such was the excess of St. Peter's humility, that he judged himself unworthy the presence of Christ, and by this rendered himself more worthy. So the centurion, for a similar act of self-abasement, merited to hear from Truth itself, that he was preferred to all Israel. Euthymius is however of opinion, that St. Peter desired Christ to leave him through fear, lest some evil should befall him, because he was not worthy of his presence. In the same manner as the widow of Sarepta thought her son had died, because she was not worthy of the presence of Elias. (3 Kings xvii. 18.) (Maldonatus)