John 21:13 - Matthew Poole's English Annotations on the Holy Bible

Those who question whether our Saviour himself did eat, seem not to consider what is written Acts 10:41, where it is expressly said, he did eat and drink with them after he rose from the dead; which he doubtless did, to show that he was truly risen from the dead, and his seeming body was not a phantasm, and mere apparition of a body, but the same true body which was crucified, though now more glorious, and not clothed with those infirmities which it had before his death; from whence it only followeth, that he did not eat to satisfy his hunger, but only to confirm the truth of his resurrection. He did before this eat with some of them, Luke 24:30.