Note 843 — Chapter VIII · THE HEBREW SABBATH
Reading edition
In the New Testament such phrases as ἐν δὲ μιᾷ τῶν σαββάτων (Acts, xx, 7) and κατὰ μίαν σαββάτου (1 Corinthians, xvi, 2; compare Matthew, xxviii, 1; Mark, xvi, 2; Luke, xxiv, 1; John, xx, 1, 19) refer to Sunday as “the first day of the week.” An equivalent expression, πρώτῃ σαββάτου, is also found (Mark, xvi, 9). The designation of Sunday as the Lord’s Day—ἡ κυριακὴ ἡμέρα—occurs in a single New Testament passage (Revelation, i, 10). Some critics hold that the author of the Apocalypse was referring here, not to Sunday but to the day of Judgment, called elsewhere ἡ ἡμέρα ἡ μεγάλη “the great day” (ibid., vi, 17, xvi, 14).