It is in Matt 12 and Mark 2 where there is the story where Jesus and the disciples went into the cornfield to pick ears to eat.
Mat 12:1 At that time Jesus went through the grainfields on the Sabbath. And His disciples were hungry, and began to pluck heads of grain and to eat.
But the Pharisees accused them of breaking the Sabbath, doing labor to pick the ears to eat.
Mat 12:2 And when the Pharisees saw [it], they said to Him, "Look, Your disciples are doing what is not lawful to do on the Sabbath!"
Now Jesus comes back to explain there was more to the Sabbath than just not doing any kind of physical work.
Mat 12:3 But He said to them, "Have you not read what David did when he was hungry, he and those who were with him:
v. 4 "how he entered the house of God and ate the showbread which was not lawful for him to eat, nor for those who were with him, but only for the priests?
v. 5 "Or have you not read in the law that on the Sabbath the priests in the temple profane the Sabbath, and are blameless?
v. 6 "Yet I say to you that in this place there is [One] greater than the temple.
Mat 12:7 "But if you had known what [this] means, 'I desire mercy and not sacrifice,' [fn] you would not have condemned the guiltless.
So the Pharisees thought they were the righteous ones and had gotten Jesus on something, breaking the Sabbath. But what they did not seem to know was that they were accusing the One who created the Sabbath and knew perfectly well it's purpose.
mercy, peace and love
Kat