Today’s reading plainly belongs with yesterday’s.
Jesus is illustrating the proper attitude toward the Sabbath.
He doesn’t say that it’s okay to engage in trade on the Sabbath day, let alone to eat out in restaurants or attend movies.
But the rules for the Sabbath weren’t intended to free us from service and acts of kindness and charity on that day. In fact, the spirit of the Sabbath urges quite the contrary:
“It is lawful,” he says at Matthew 12:12, “to do good on the Sabbath.”