Jesus defends his disciples picking grain on the sabbath not because he has no care for the law, but because he is the new place of encounter with God, and by being with him, his disciples are fulfilling the command for resting on the sabbath. How can we draw nearer to God today?
Based on Matthew 12:1-8:
At that time Jesus went through the cornfields on the sabbath; his disciples were hungry, and they began to pluck heads of grain and to eat. When the Pharisees saw it, they said to him, ‘Look, your disciples are doing what is not lawful to do on the sabbath.’ He said to them, ‘Have you not read what David did when he and his companions were hungry? He entered the house of God and ate the bread of the Presence, which it was not lawful for him or his companions to eat, but only for the priests. Or have you not read in the law that on the sabbath the priests in the temple break the sabbath and yet are guiltless? I tell you, something greater than the temple is here. But if you had known what this means, “I desire mercy and not sacrifice”, you would not have condemned the guiltless. For the Son of Man is lord of the sabbath.’
(New Revised Standard Version Bible: Anglicized Edition, copyright © 1989, 1995 National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved worldwide. http://nrsvbibles.org)