JST, Mark 2:26–27. Compare Mark 2:27–28

The Son of Man is Lord of the Sabbath because He made the Sabbath day.

26 Wherefore the Sabbath was given unto man for a day of rest; and also that man should glorify God, and not that man should not eat;

27 For the Son of man made the Sabbath day, therefore the Son of man is Lord also of the Sabbath.