When the Pharisees criticized the disciples of Jesus, he said in part,
“Or have you not read in the law that on the Sabbath the priests in the temple profane the Sabbath, and are blameless?” (Matthew 12:5).
To Jesus, simply reading the Law would have solved the controversy. No doubt they thought they had read the Law, but truthfully, they only heard what they wanted to hear, and did not hang upon every word that the Law spoke.
Therefore, they would have realized that the disciples of Jesus did not violate the Sabbath by eating heads of grain on the Sabbath, for the priests did far more in the temple on the Sabbath, yet, the Pharisees did not condemn them.
Friends, read every word of the Bible, knowing that the Holy Spirit had every word recorded for a reason.