SUNDAY. The first day of the week, so called by the Saxons, because it was dedicated to the worship of the Sun.

Among Christians it is kept "holy" instead of the Jewish Sabbath, because on that day our Lord rose from the dead, and for that reason it is called by St. John "the Lord's Day." (Rev. i. 10.) When  the Sunday began to be kept instead of the Sabbath we are not quite sure, but we find that the Apostles kept the first day of the week as a festival. Our Lord Himself sanctioned it by His repeated appearance among His disciples on that day. The Holy Spirit, too, poured down His miraculous gifts on that day. The early Christians observed the Sunday.

By many it is believed that it is one of the things in which our Lord instructed His Apostles before His Ascension, while "speaking of things pertaining to the Kingdom of God." (Acts 1,3.) The phrase "kingdom of God" is always used of the Church. In keeping the Sunday "holy," Christians comply with the spirit  of the fourth Commandment, which orders a seventh part of our time to be consecrated to God.