Luke 13:14-15
But the ruler of the synagogue was indignant at Jesus for healing her on the Sabbath, and said to the crowd. "There are six days of the week on which men ought to work. Therefore come during those, and get cured, but not on the Sabbath Day."
John 5:16
and because of this the Jews began to persecute Jesus, because he had done it on the Sabbath.
Hebrews 2:2-3
For if the word uttered through angels stood firm, so that every transgression and act of disobedience met with its just retribution, how shall we escape if we neglect so great a salvation?
Hebrews 10:28-29
Any one who set at naught the law of Moses was put to death without pity, on the testimony of two or three witnesses.