Hey everybody! Here is Luke 6: 3 - 4
Jesus answered, “Have you not read what David did when he and his companions were hungry? How he entered the house of God and took and ate the bread of the Presence, which it is not lawful for any but the priests to eat, and gave some to his companions?”
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Jesus counters the Pharisees with a reference to 1Samuel 21: 1-7. "Have you not read what David did?" He asks them. "When David and his companions were hungry?"
Jesus does not challenge the Pharisees on their interpretation of the Law. Keeping Sabbath is one of the Ten Commandments & the scriptures are clear about doing no work on that day.
Plucking some grain and rubbing it in one's hands may not seem like work to us. But this is not Jesus's point.
Keeping the Law is important. But feeding the hungry is also a moral imperative. I think His response to the Pharisees is brilliant.