That's a direct correlation to the seventh day of rest of creation. This points to the 1,000 reign of Christ. If you view the Bible dispensationally, this would be the seventh and final dispensation before eternity future.
I like the reference to the Sabbath rest...
Hebrews 4:9-10 (KJV)
[SUP]9 [/SUP] There remaineth therefore a rest to the people of God.
[SUP]10 [/SUP] For he that is entered into his rest, he also hath ceased from his own works, as God did from his.