Keep in mind that the entire context of what is mentioned in Hebrews is dependent on other part of the same book and interconnected with the larger context of the entire story of the Bible. This is a common mistake that can be made with scripture. Consult the seven rules of Hillel for more on this. Seven Rules
7. Davar hilmad me'anino (Explanation obtained from context)
The total context, not just the isolated statement must be considered for an accurate exegesis. An example would be Romans 14:1, "I know and am convinced by the Lord Yeshua that nothing is unclean of itself; but to him who considers anything to be unclean, to him it is unclean." Paul is not abrogating the kosher laws, but pointing out to gentile believers in the congregation at Rome (within his larger context of Romans) that: 1) things are unclean not of themselves but because God said they are unclean, and 2) they must remember the higher principle, that their "freedom to eat what is unclean" is secondary to the salvation of unsaved Jews who are observing their behavior, as they are looking for "gentiles coming into the faith of Israel" to be acting in an "appropriate manner" as a truth test of Paul’s ministry (and Yeshua’s Messiahship).