When you think about how you acted, you will be ashamed, especially when I return your sisters to you as daughters, even though this was not part of our agreement.
Even though the Law of Moses says that the priests must be descendants of Levi, those priests cannot make anyone perfect. So there needs to be a priest like Melchizedek, rather than one from the priestly family of Aaron.
These rules are merely about such things as eating and drinking and ceremonies for washing ourselves. And rules about physical things will last only until the time comes to change them for something better.