A reader who opposed Sabbath observance :wrote
“And the Pharisees said unto him, Behold, why do they on the sabbath day that which is not lawful? And he said unto them, Have ye never read what David did, when he had need, and was an hungred, he, and they that were with him? How he went into the house of God in the days of Abiathar the high priest, and did eat the shewbread, which is not lawful to eat but for the priests, and gave also to them which were with him? And he said unto them, The sabbath was made for man, and not man for the sabbath: Therefore the Son of man is Lord also of the sabbath.” Mark 2:24-28 KJV
Adam Clarke wrote: "The Sabbath was therefore pre-eminently intended for man’s welfare, and the best interests of mankind demand that it should be sacredly regarded as an appointment of merciful heaven intended for our best good, and, where improved aright, infallibly resulting in our temporal and eternal peace.
Not man for the sabbath - Man was made “first,” and then the Sabbath was appointed for his welfare, Gen_2:1-3. The Sabbath was not “first” made or contemplated, and then the man made with reference to that. Since, therefore, the Sabbath was intended for man’s “good,” the law respecting it must not be interpreted so as to oppose his real welfare. It must be explained in consistency with a proper attention to the duties of mercy to the poor and the sick, and to those in peril. It must be, however, in accordance with man’s “real good on the whole,” and with the law of God. The law of God contemplates man’s “real good on the whole;” and we have no right, under the plea that the Sabbath was made for man, to do anything contrary to what the law of God admits. It would not be for our “real good,” but for our real and eternal injury, to devote the Sabbath to vice, to labor, or to amusement."