Honestly, I don't disagree with what appears to be progressive revelation. Here's what I think is a better explanation:I sometimes find myself a little at odds with my Hebrew Roots brethren here. Yes God is the same for ever and ever and His Words endure forever but I don't see how we can deny that He rolled out His Revelation in stages. Abraham and Sarah's union would have brought a death penalty after Sinai. Moses gave a substantially different Law right before the Hebrew children entered the Promised Land thab he had at Sinai. And Christ exploded everything and stitched it back together again. Paul and the other Apostles delivered some substantially enlarged doctrines.
All of these things were consistent with God's nature and what came previously, nothing contradicted or clashed but He did not give us everything at once.
It all existed from the beginning, but, we are sinners... we ignore, forget, misapply, etc... so, at different points in history the Father has pointedly reminded us and sometimes adjusted our focus in application. For example: Remember the Sabbath day... they already had it. Ex. 16 tells us that Moses first uses the term and understands the concept... before Sinai...but God had to remind them of it all.. Another example: Yeshua clearly says He didn't come to abolish or anull the Law, but He points to the heart application. Paul's focus has to do with applying these pieces to the awakening scattered and grafted in new members of the house of Israel. He is producing a framework for families, clans and tribes... he just had no idea that Abba's plan was 2000 years long...
The Torah is multilayered and faceted... we got so wrapped in the spiritual aspect that Christendom forgot that there is a solid underlying physical set of commands.. part of today's course correction. Awakening to the physical commands...
None of these things are separate works or 'new Torahs' but a Divine shifting of lost focus to bring us closer to His heart and central plan.
my 2 shekels...