Mark 2:23-28 (NRSV)
One sabbath he was going through the grainfields; and as they made their way his disciples began to pluck heads of grain. The Pharisees said to him, “Look, why are they doing what is not lawful on the sabbath?” And he said to them, “Have you never read what David did when he and his companions were hungry and in need of food? He entered the house of God, when Abiathar was high priest, and ate the bread of the Presence, which it is not lawful for any but the priests to eat, and he gave some to his companions.” Then he said to them, “The sabbath was made for humankind, and not humankind for the sabbath; so the Son of Man is lord even of the sabbath.”
Mark 3:1-6 (NRSV)
Again he entered the synagogue, and a man was there who had a withered hand. They watched him to see whether he would cure him on the sabbath, so that they might accuse him. And he said to the man who had the withered hand, “Come forward.” Then he said to them, “Is it lawful to do good or to do harm on the sabbath, to save life or to kill?” But they were silent. He looked around at them with anger; he was grieved at their hardness of heart and said to the man, “Stretch out your hand.” He stretched it out, and his hand was restored. The Pharisees went out and immediately conspired with the Herodians against him, how to destroy him.
Luke 13:10-17 (NRSV)
Now he was teaching in one of the synagogues on the sabbath. And just then there appeared a woman with a spirit that had crippled her for eighteen years. She was bent over and was quite unable to stand up straight. When Jesus saw her, he called her over and said, “Woman, you are set free from your ailment.” When he laid his hands on her, immediately she stood up straight and began praising God. But the leader of the synagogue, indignant because Jesus had cured on the sabbath, kept saying to the crowd, “There are six days on which work ought to be done; come on those days and be cured, and not on the sabbath day.” But the Lord answered him and said, “You hypocrites! Does not each of you on the sabbath untie his ox or his donkey from the manger, and lead it away to give it water? And ought not this woman, a daughter of Abraham whom Satan bound for eighteen long years, be set free from this bondage on the sabbath day?” When he said this, all his opponents were put to shame; and the entire crowd was rejoicing at all the wonderful things that he was doing.