The Lord’s Day is a time dedicated to honoring God through rest and worship. It is rooted in the Sabbath principle God established at creation. The Sabbath was a holy day of rest and devotion, symbolizing God’s covenant with Israel and pointing forward to the spiritual rest found in Him. Believers are not mandated to observe the Sabbath, but it is a good practice to keep a rhythm of work and rest, trusting in and worshiping God. In the early church, believers gathered on Sunday to celebrate Christ’s resurrection, but Scripture teaches that no specific day is mandated for worship. Through Jesus, we are freed from legalistic observance of the Law, finding our true rest in Him. Every day belongs to the Lord, and setting aside time for worship is an act of love and gratitude, not obligation—what matters most is that our worship flows from faith and honors God in spirit and truth.
No specific day is prescribed as a Sabbath or a specific “Lord’s Day” for Christians. Instead, every day is the Lord’s day. Still, it is wise to set aside a day of the week in honor of God, to follow His example of rest, and to worship. But Sunday is not the "Christian Sabbath," and a Christian is not bound by the Law (Romans 6:14–15). We are to rely on our conscience to determine when to worship: "One person esteems one day as better than another, while another esteems all days alike. Each one should be fully convinced in his own mind. The one who observes the day, observes it in honor of the Lord. The one who eats, eats in honor of the Lord, since he gives thanks to God, while the one who abstains, abstains in honor of the Lord and gives thanks to God" (Romans 14:5–6).
Some Messianic Jews regard the Sabbath day as holy because of their heritage, and some Gentile Christians honor God by observing the Saturday Sabbath as well. But the day of the week is not as important as the motive behind the choice Christians make to worship God. If a Christian's choice is due to legalism or obedience to the Law, then his heart must be examined (Galatians 5:4). God is pleased when we worship Him in spirit and truth on any day of the week.