In Christianity, the Lord's Day refers to Sunday, the principal day of communal worship. It is the first day of the week in the Hebrew calendar and traditional Christian calendars, with the exception of European (workweek) calendars. It is observed by most Christians as the weekly memorial of the resurrection of Jesus Christ, who is said to have been raised from the dead early on the first day of the week. The phrase appears only once in Rev. 1:10 of the New Testament.
15th Station of the Cross: the Resurrection.
Christian denominations teaching first-day Sabbatarianism, such as the Free Presbyterian Church of Ulster, observe the Lord's Day as a day of worship and rest
Sunday is the day of the week between Saturday and Monday. Sunday is a day of rest in most Western countries and a part of the weekend. In some Middle Eastern countries, Sunday is a weekday.
A depiction of Máni, the personified Moon, and his sister Sól, the personified Sun, from Norse mythology (1895) by Lorenz Frølich.
In the United States, National Football League games are usually played on Sunday
Sol Iustitiae (Sun of Righteousness), derived from the Judeo-Christian Bible, Malachi 4:2. By Albrecht Dürer, c. 1499/1500