'It is the Lord' in the Bible

Therefore that disciple whom Jesus loved saith unto Peter, It is the Lord. Now when Simon Peter heard that it was the Lord, he girt his fisher's coat unto him, (for he was naked,) and did cast himself into the sea.

Jesus saith to them, 'Come ye, dine;' and none of the disciples was venturing to inquire of him, 'Who art thou?' knowing that it is the Lord;