John Calvin on Luke 14:1-2

This narrative contains nothing more than a miracle which Christ performed, in order to correct the superstitious observance of the Sabbath. For he did not, intend, as some imagine, absolutely to abolish the Sabbath, but only to point out, that neither the works of God, nor the duties of charity, violate the holy rest which is enjoined by the law. Whether or not those very persons had purposely brought the dropsical man to that place cannot be known with certainty. He unquestionably could not be present at the table by accident, nor break into a private dwelling without the permission and consent of the owner. It is therefore probable, that he was placed there with the concealed design of tempting Christ, which, on their part, was as foolish an action as it was wicked; for they had already known by experience what Christ was accustomed to do, whenever a similar occasion presented itself.