From Institutes of the Christian Religion…
29. The purpose of this commandment is that, being dead to our own inclinations and works, we should meditate on the Kingdom of God, and that we should practice that meditation in the ways established by him. But, since this commandment has a particular consideration distinct from the others, it requires a slightly different order of exposition. The early fathers customarily called this commandment a foreshadowing because it contains the outward keeping of a day which, upon Christ’s coming, was abolished with the other figures. This they say truly, but they touch upon only half the matter. Hence, we must go deeper in our exposition, and ponder three conditions in which, it seems to me, the keeping of this commandment consists.
First, under the repose of the seventh day the heavenly Lawgiver meant to represent to the people of Israel spiritual rest, in which believers ought to lay aside their own works to allow God to work in them. Secondly, he meant that there was to be a stated day for them to assemble to hear the law and perform the rites, or at least to devote it particularly to meditation upon his works, and thus through this remembrance to be trained in piety. Thirdly, he resolved to give a day of rest to servants and those who are under the authority of others, in order that they should have some respite from toil.
33. I am obliged to dwell a little longer on this because some restless spirits are now making an outcry about the observance of the Lord’s day. They complain that Christian people are trained in Judaism, because some observance of days is retained. My reply is, that those days are observed by us without Judaism, because in this matter we differ widely from the Jews. We do not celebrate it with most minute formality, as a ceremony by which we imagine that a spiritual mystery is typified, but we adopt it as a necessary remedy for preserving order in the Church. Paul informs us that Christians are not to be judged in respect of its observance, because it is a shadow of something to come, (Col. 2:16); and, accordingly, he expresses a fear lest his labour among the Galatians should prove in vain, because they still observed days (Gal. 4:10, 11.) And he tells the Romans that it is superstitious to make one day differ from another (Rom. 14:5). But who, except those restless men, does not see what the observance is to which the Apostle refers? Those persons had no regard to that politic and ecclesiastical arrangement, but by retaining the days as types of spiritual things, they in so far obscured the glory of Christ, and the light of the Gospel. They did not desist from manual labour on the ground of its interfering with sacred study and meditation, but as a kind of religious observance; because they dreamed that by their cessation from labour, they were cultivating the mysteries which had of old been committed to them. It was, I say, against this preposterous observance of days that the Apostle inveighs, and not against that legitimate selection which is subservient to the peace of Christian society. For in the churches established by him, this was the use for which the Sabbath was retained. He tells the Corinthians to set the first day apart for collecting contributions for the relief of their brethren at Jerusalem, (1 Cor. 16:2). If superstition is dreaded, there was more danger in keeping the Jewish sabbath than the Lord’s day as Christians now do. It being expedient to overthrow superstition, the Jewish holy day was abolished; and as a thing necessary to retain decency, orders and peace, in the Church, another day was appointed for that purpose.
34. It was not, however, without a reason that the early Christians substituted what we call the Lord’s day for the Sabbath. The resurrection of our Lord being the end and accomplishment of that true rest which the ancient sabbath typified, this day, by which types were abolished serves to warn Christians against adhering to a shadowy ceremony. I do not cling so to the number seven as to bring the Church under bondage to it, nor do I condemn churches for holding their meetings on other solemn days, provided they guard against superstition. This they will do if they employ those days merely for the observance of discipline and regular order. The whole may be thus summed up: As the truth was delivered typically to the Jews, so it is imparted to us without figure; first, that during our whole lives we may aim at a constant rest from our own works, in order that the Lord may work in us by his Spirit; secondly that every individual, as he has opportunity, may diligently exercise himself in private, in pious meditation on the works of God, and, at the same time, that all may observe the legitimate order appointed by the Church, for the hearing of the word, the administration of the sacraments, and public prayer: And, thirdly, that we may avoid oppressing those who are subject to us. In this way, we get quit of the trifling of the false prophets, who in later times instilled Jewish ideas into the people, alleging that nothing was abrogated but what was ceremonial in the commandment, (this they term in their language the taxation of the seventh day), while the moral part remains—viz. the observance of one day in seven. But this is nothing else than to insult the Jews, by changing the day, and yet mentally attributing to it the same sanctity; thus retaining the same typical distinction of days as had place among the Jews. And of a truth, we see what profit they have made by such a doctrine. Those who cling to their constitutions go thrice as far as the Jews in the gross and carnal superstition of sabbatism; so that the rebukes which we read in Isaiah (Isa. 1:l3; 58:13) apply as much to those of the present day, as to those to whom the Prophet addressed them. We must be careful, however, to observe the general doctrine—viz. in order that religion may neither be lost nor languish among us, we must diligently attend on our religious assemblies, and duly avail ourselves of those external aids which tend to promote the worship of God.