Here is a portion of what John Calvin wrote on the Law and Sabbath:
31. Should these remarks on the number seem to any somewhat far-fetched, I have no objection to their taking it more simply: that the Lord appointed a certain day on which his people might be trained, under the tutelage of the Law, to meditate constantly on the spiritual rest, and fixed upon the seventh, either because he foresaw it would be sufficient, or in order that his own example might operate as a stronger stimulus; or, at least to remind men that the Sabbath was appointed for no other purpose than to render them conformable to their Creator. It is of little consequence which of these be adopted, provided we lose not sight of the principal thing delineated--viz. the mystery of perpetual resting from our works. To the contemplation of this, the Jews were every now and then called by the prophets, lest they should think a carnal cessation from labour sufficient. Beside the passages already quoted, there is the following: “If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the Lord, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: then shalt thou delight thyself in the Lord,” (Isaiah 58:13, 14). Still there can be no doubt, that, on the advent of our Lord Jesus Christ, the ceremonial part of the commandment was abolished. He is the truth, at whose presence all the emblems vanish; the body, at the sight of which the shadows disappear. He, I say, is the true completion of the sabbath: “We are buried with him by baptism unto death: that like as Christ was raised up from the dead by the glory of the Father, even so we should walk in newness of life,” (Rom. 6:4). Hence, as the Apostle elsewhere says, “Let no man therefore judge you in meat, or in drink, or in respect of an holiday, or of the new moon, or of the sabbath days; which are a shadow of things to come; but the body is of Christ,” (Col. 2:16, 17); meaning by body the whole essence of the truth, as is well explained in that passage. This is not contented with one day, but requires the whole course of our lives, until being completely dead to ourselves, we are filled with the life of God. Christians, therefore, should have nothing to do with a superstitious observance of days.
32. The two other cases ought not to be classed with ancient shadows, but are adapted to every age. The sabbath being abrogated, there is still room among us, first, to assemble on stated days for the hearing of the Word, the breaking of the mystical bread, and public prayer; and, secondly, to give our servants and labourers relaxation from labour. It cannot be doubted that the Lord provided for both in the commandment of the Sabbath. The former is abundantly evinced by the mere practice of the Jews. The latter Moses has expressed in Deuteronomy in the following terms: “The seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, nor thy man-servant, nor thy maid-servant;--that thy man-servant and thy maid-servant may rest as well as thou,” (Deut. 5:14). Likewise in Exodus, “That thine ox and thine ass may rest, and the son of thy handmaid, and the stranger, may be refreshed,” (Exod. 23:12). Who can deny that both are equally applicable to us as to the Jews? Religious meetings are enjoined us by the word of God; their necessity, experience itself sufficiently demonstrates. But unless these meetings are stated, and have fixed days allotted to them, how can they be held? We must, as the apostle expresses it, do all things decently and in orders (1 Cor. 14:40). So impossible, however, would it be to preserve decency and order without this politic arrangements that the dissolution of it would instantly lead to the disturbance and ruin of the Church. But if the reason for which the Lord appointed a sabbath to the Jews is equally applicable to us, no man can assert that it is a matter with which we have nothing to do. Our most provident and indulgent Parent has been pleased to provide for our wants not less than for the wants of the Jews. Why, it may be asked, do we not hold daily meetings, and thus avoid the distinction of days? Would that we were privileged to do so! Spiritual wisdom undoubtedly deserves to have some portion of every day devoted to it. But if, owing to the weakness of many, daily meetings cannot be held, and charity will not allow us to exact more of them, why should we not adopt the rule which the will of God has obviously imposed upon us?
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,[205] 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.
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It is amazing to me that the Westminster Confession and the orthodox Presbyterians don’t pay attention to Calvin on this matter. Some of them want to make Sunday another legalistic day.
Stan