The Synod of Dort's Rules for Observing the Sabbath or Lord's Day:
1. In the fourth Commandment of the divine law, part is ceremonial and part is moral.
2. The ceremonial was the rest of the seventh day after creation, and the rigid observance of that day prescribed particularly for the Jewish people.
3. The moral truly is that a certain and appointed day should be appointed for the worship of God and so much rest as is necessary for the worship of God and for holy meditation on him.
4. Since the abrogation of the Sabbath of the Jews, the day of the Lord must be solemnly sanctified by Christians.
5. This day has always been observed since the time of the Apostles by the ancient catholic church.
6. This day must be so consecrated to divine worship that on it one ceases from all servile works, except those of love and present necessity; and also from all such refreshing activities as impede the worship of God.
(Translated by W. Robert Godfrey, revised by Brian Lee)