A modern dictionary of Catholic terms, both common and obscure. Find accurate definitions of words and phrases.
The first day of the week. Jewish converts to Christianity continued to ovserve the seventh day as the sabbath as well as the first day in commemoration of the Resurrection and Pentecost. But, as Jewish influence waned with the spread of the Church, Sunday became the holy day. Paul's influence was strong in this change (I Corinthians 16:1-2). The name "Lord's Day" appeared first in Revelation (Revelation 1:10).
All items in this dictionary are from Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.