John Calvin Commentary Matthew 14:33

"And they that were in the boat worshipped him, saying, Of a truth thou art the Son of God." — Matthew 14:33 (ASV)

Those who were in the ship. I understand these words to refer not only to the disciples, but to the sailors and other passengers. So then, those who had not yet declared that he was their Master instantly acknowledge that he is the Son of God, and by this term accord him the honor of the Messiah.

Though at that time this lofty mystery was not generally known, how God was to be manifested in the flesh, (1 Timothy 3:16), yet, as they had learned from the prophets that the one who was to be the Redeemer would be called the Son of God, those who under this designation proclaim the glory of Christ declare their belief that he is the Christ.³⁸⁵

³⁸⁵ “Declarent qu’ils croyent qu’il est le Christ et le Messins;” — “declare that they believe that he is the Christ and the Messiah.”;” — “declare that they believe that he is the Christ and the Messiah.”