In the old covenant, the sabbath was the seventh day of the week. In the new covenant, the sabbath is the eternal age. The original sabbath marked the completion of God’s creative work; the eternal sabbath marks the completion of God’s redemptive work.
Matthew 12:8 – “For the Son of Man is Lord of the Sabbath.”
Mark 2:28 – “So the Son of Man is Lord even of the Sabbath.”
Luke 6:5 – “And He was saying to them, ‘The Son of Man is Lord of the Sabbath.’”