3 Jesus said, "Really? Didn't you ever read what David and his companions did when they were hungry, 4 how they entered the sanctuary and ate fresh bread off the altar, bread that no one but priests were allowed to eat? 5 And didn't you ever read in God's Law that priests carrying out their Temple duties break Sabbath rules all the time and it's not held against them? 6 "There is far more at stake here than religion. 7 If you had any idea what this Scripture meant - 'I prefer a flexible heart to an inflexible ritual' - you wouldn't be nitpicking like this. 8 The Son of Man is no lackey to the Sabbath; he's in charge."
Matthew Henry's Commentary on Matthew 12:3-8
Commentary on Matthew 12:1-8
(Read Matthew 12:1-8)
Being in the corn-fields, the disciples began to pluck the ears of corn: the law of God allowed it, Deuteronomy 5:14. No law must be understood so as to contradict its own end. And as Christ is the Lord of the sabbath, it is fit the day and the work of it should be dedicated to him.