Leviticus 25

For if Joshua had given them rest, God would not have spoken of another day later on.  So then, there remains a Sabbath rest for the people of God, for whoever has entered God’s rest has also rested from his works as God did from his.  Let us therefore strive to enter that rest, so that no one may fall by the same sort of disobedience. – Hebrews 4:8-11

Scripture Reference:  Leviticus 25, Hebrews 4:1-13