Why is the Sabbath relevant for Christians today?

In the New Testament, the approach to the Sabbath shifts from a strict adherence to rules to recognizing Christ as our true rest. Jesus declared that He is Lord of the Sabbath, signifying that in Him we find relief from the burdensome requirements of the law. As Christians, we celebrate the first day of the week, the Lord's Day, as a reminder of Christ's resurrection and as a time to gather for worship. Thus, the Sabbath is relevant as it reorients our focus onto Christ and His completed work, liberating us to worship freely.