Mat 12:12 How much better then is a man than a sheep? Therefore it is lawful to do good on the sabbath days.

"Better than" is diapherô, which means "to carry over," "to carry from one place to another," "to bear through," "to carry different ways," "to be different from," and "to quarrel."

"Lawful" is exesti, which means "to be allowed," "is possible," and "to be in one's power."

"Good" is kalos, which means "beautiful," "good," "of fine quality," "noble," "honorable," and "fairly."

When Christ asks,"How much different is a man from a sheep?" he is referring to the fact, if it is good to rescue a sheep on the Sabbath, it is just a good to rescue a man on the Sabbath. More to the point, we are all allowed and have it within our ability to do what is beautiful, good, noble, and honorable on the Sabbath.