John Calvin's Bible Commentary
Jeremiah 17:19
This discourse is no doubt to be separated from the preceding one, and whosoever divided the chapters was deficient in judgment as to many other places as well as here. Now the meaning is, that so great and so gross was the contempt of the law, that they neglected even the observance of the Sabbath; and yet we know that hypocrites are in this respect very careful, nay, Isaiah upbraided the men of his day that they made so much of their sanctity to consist in the outward observance of days. (Isaiah 1:13.) But, as I have already said, the Jews were so audacious in the time of Jeremiah that they openly violated the Sabbath, men were become so lost, as we commonly say, as not to pretend any religion. The licentiousness of the people was so great that they had no shame; nay, they all openly shewed that they had wholly cast away the yoke of God and of his law. When this was the case at Jerusalem, wlmt can we think was done in obscure villages where so much religion did not exist? for if there was any right teaching, if there was any appearance of religion, it must have been at Jerusalem.
We now then see that the Prophet was sent by God to charge the people with this gross and base contempt of the law; as though he had said, “Go to now, and pretend that you retain at least some religion: yet even in this small matter, the observance of the Sabbath, ye are deficient, for ye bring burdens, that is, ye carry on business on the Sabbath as on other days. As then there is not among you even an external sanctity as to the Sabbath, why do you go on with your evasions? for your impiety is sufficiently proved.” We now see what the Prophet means, and what the import of this discourse is which we are now to explain.
He says first, that he was sent, go, to bring this message. He had been indeed chosen before a prophet; but he speaks here of a special thing which he was commissioned to do: and he says that he was sent to the chief gate of the city, through which the kings entered in and went out and the whole people (186) and then that he was sent to all the gates. By these words he means, that it was not God’s will that the profanation of the Sabbath should be partially made known, but be everywhere proclaimed, in order that he might shame not only the king but also the whole people. The prophets usually spoke first in the Temple, and then they went to the gates, where there was a larger concourse of people. But Jeremiah had here something unusual; for God intended most clearly to condemn the Jews for their base and inexcusable contempt of the Sabbath.