“They [the patriarchs] did not, therefore, regard circumcision, nor observe the Sabbath, nor do we; neither do we abstain from certain foods, nor regard other injunctions, which Moses subsequently delivered to be observed in types and symbols, because such things as these do not belong to Christians.”[757] This testimony shows precisely the views of Constantine and the imperial party relative to the Sabbath. But it does not give the views of Christians as a whole; for we have seen that the Sabbath had been extensively retained up to this point, and we shall soon have occasion to quote other historians, the cotemporaries and successors of Eusebius, who record its continued observance. Constantine exerted a controlling influence in the church, and was determined to “have nothing in common with that most hostile rabble of the Jews.” Happy would it have been had his aversion been directed against the festivals of the heathen rather than against the Sabbath of the Lord. Before Constantine’s time, there is no trace of the doctrine of the change of the Sabbath. On the contrary, we have decisive evidence that Sunday was a day on which ordinary labor was considered lawful and proper. But Constantine, while yet a heathen, commanded that every kind of business excepting agriculture should be laid aside on that day. His law designated the day as a heathen festival, which it actually was. But within four years after its enactment, Constantine had become, not merely a professed convert to the Christian religion, but, in many respects, practically the head of the church, as the course of things at the council of Nicea plainly showed. His heathen Sunday law, being unrevoked, was thenceforward enforced in behalf of that day as a Christian festival. This law gave to the Sunday festival, for the first time, something of a Sabbatic character. It was now a rest-day from most kinds of business by the law of the Roman Empire. God’s rest-day was thenceforward more in the way than ever before. But now we come to a fact of remarkable interest. The way having been prepared, as we have just seen, for the doctrine of the change of the Sabbath, and the circumstances of the case demanding its production, it was at this very point brought forward for the _first time_. Eusebius, the special friend and flatterer of Constantine, was the man who first put forth this doctrine. In his “Commentary on the Psalms,” he makes the following statement on Psalm xcii. respecting the change of the Sabbath:—