The Lord’s Day most commonly refers to Sunday, the first day of the week, especially as the day Christians associate with the risen Lord Jesus and regular worship. In Revelation 1:10, the phrase is commonly understood to refer to this day, though interpreters discuss the exact nuance.
Usually understood as Sunday, the first day of the week, particularly in light of Revelation 1:10 and the New Testament pattern of first-day Christian gathering.
The Lord’s Day is commonly understood as Sunday, the first day of the week, which came to be especially associated with the resurrection of Jesus Christ and with the regular gathering of believers for worship. The exact phrase appears in Revelation 1:10, where John says that he was “in the Spirit on the Lord’s day.” Most conservative interpreters understand this as a reference to the Christian day of worship, especially when read alongside New Testament passages that show believers gathering on the first day of the week and the repeated emphasis on the resurrection occurring on that day. Because Scripture uses the exact expression only once, however, interpreters should avoid overstating what the verse itself proves. The safest definition is that the Lord’s Day ordinarily refers to the first day of the week in Christian practice, while recognizing that the precise nuance of Revelation 1:10 is discussed.
The New Testament connects the first day of the week with Jesus’ resurrection and with Christian gathering (for example, the resurrection accounts and the meeting of believers in Acts 20:7). Revelation 1:10 is the only verse that uses the exact phrase “the Lord’s Day,” so the term must be defined with care and in context.
By the early centuries of church history, Sunday was widely recognized among Christians as the primary day of worship. That historical development is relevant, but Scripture remains the controlling authority for defining the term.
In Jewish life, the Sabbath was the seventh day and marked covenant rest. The Christian identification of the first day of the week with the Lord’s Day reflects the resurrection-centered life of the church and should not be confused with the Old Testament Sabbath itself.
The Greek expression in Revelation 1:10 is kyriake hemera, meaning “the Lord’s day” or “the day belonging to the Lord.”
The term highlights the risen Christ’s authority and the resurrection-centered life of the church. It is often connected with Christian worship and remembrance of Christ’s victory over death.
The phrase functions as a calendar and covenant marker: a day distinguished by relation to the Lord Jesus rather than by ordinary weekly routine. Its meaning is best derived from the biblical context, not from later tradition alone.
Do not overstate Revelation 1:10 as if it settled every question about Sabbath practice or church calendars. The phrase appears explicitly only once, so definitions should be careful and context-sensitive. Christians disagree on how directly this term relates to Sabbath theology, and the entry should not make that connection more rigid than the text warrants.
Most conservative interpreters take the phrase to mean Sunday, the first day of the week. A minority reading treats it more generally as “the day of the Lord” in an eschatological sense, but that is less commonly adopted in Bible reference works.
This term should not be turned into a salvation test or used to deny the legitimacy of Christians who differ on weekly observance. It may support Sunday worship, but it does not by itself prove a full transfer of Old Testament Sabbath law.
The Lord’s Day reminds believers to gather for worship, remember the resurrection, and orient the week around the risen Christ. It encourages regular corporate worship and resurrection-shaped discipleship.