Law in the Scriptures – Two Major Formats? Why?

Eternal-Natural-Moral Law

1) There is the “eternal law” that has been extant as an arbiter of free will subsequent the creation of the angels, this law judged Satan and the rebellious angels of treason/defilement (John 8:44).

It is the eternal or “natural” law that is written upon the human heart at conception as human kind is created in the spiritual image of Elohim (Romans 2:14-15; Genesis 1:26-28) and therefore possesses certain divine communicable attributes of Elohim, one such example of a divine communicable attribute is the natural-eternal-moral law given humanity by necessity as a bulwark against unrestrained narcissism thereby thwarting societal implosion/extinction and this eternal law is also essential for “due process” at divine adjudication manifesting subsequent Messiah’s Millennial Reign (Revelation 20:10-15).

All of humanity is divinely aware of Elohim’s sovereignty and His moral, divine, will for humanity and all of humanity will be “without excuse” at divine Judgment (Romans 1:18-32).

The codified law given Israel – Sinai’s Commandments/603-Mosaic Laws

2) There is also the “codified law” given specifically to Israel’s children at Sinai as these divine laws are elements of the eternal-natural law written upon the human heart of mankind with a specific emphasis relevant to Elohim’s concerns for Jacob’s children and their propensity for compromise with paganism/the demonic as noted in their behavior at the foot of Sinai and their worship of the golden calf as instructed by Moses’ younger brother, Aaron (Exodus 32); this, while Moses was receiving the codified law etched in stone directly from the hand of Elohim.

Elohim had deep concerns relevant to Israel’s children repeating the moral failures of the Adamic/Noahic generations which mandated worldwide judgment and extinction of human kind save eight; therefore, Elohim codified, in stone, edicts-laws specifically aimed at providing a bulwark against those pagan-demonic behaviors that would promulgate destructive moral compromise; this, being essential as Jacob’s children were ordained a progenitors of Messiah via Judah which is eternally significant concerning Elohim’s eschatological plan relevant “to destroy[ing] the works of Satan” via Messiah (1 John 3:8b) and the divine battle strategy to be employed by Messiah, the Gospel, which was ordained “before Time began” (2 Timothy 1:8-10; Genesis 3:15-21).

The Holy Spirit also inspired Moses to codify 603 civil/ceremonial laws specifically for Israel’s children concerning approved modes of behavior between fellow tribesmen, families, neighbors, temple worship and construction, dietary laws, Sabbath mandates.

So yes, in response to your inquiry, there are TWO-MAJOR forms or formats of “law” articulated within the Holy Scriptures as ordained by Elohim, the Holy Spirit.