ANSWER: No! The words “for ever” in the Old Testament mean “throughout the appointed time” or “age lasting.” For example consider carefully the usage in Exodus 12:14; Leviticus 6:18; Leviticus 7:36; and Numbers 10:8. In these the words “for ever” clearly mean “throughout (or in) their (your) generations.” Notice too, the Old Testament says that circumcision was to be an “everlasting covenant” (Genesis 17:13). Yet, Paul says in Galatians 6:15 that circumcision avails nothing in Christ! In Numbers 25:13, Moses said that the Levitical Priesthood would be “everlasting,” but in Hebrews 7:12, we learn that it had been changed. How can this be? Clearly, the same is true with these as with the Sabbath. They were to exist “for ever in their generations,” throughout their appointed times.