The OT laws were shadows pointing to the coming of Jesus, which He fulfilled, including the law. Not a thing about the 10 commandments was eternal, as they didn’t exist until about 430 yrs after Abraham. They only lasted until Jesus’ arrival. The Big Ten were merely a shadow.....(long sigh)

The 10 commandments were a political treaty between Israel and God. Morality is not limited to the Big Ten. God didn’t need any help conveying moral law to us with crude stone tablets. Jesus (as through the Transfiguration), took the place of the stone tablets, and now we follow Jesus, not the old law. The 10 commandments were ceremonial law, not moral law, and were words from the old covenant.

Neither testament separates ceremonial law from moral law. One law is mentioned in Exo 12:49, Lev 7:7, Lev 14:22, Num 15:16, Num 15:29, Num 9:14, Num 15:15, Num 19:2, Num 31:21

Jesus fulfilled the law (Matt 5). Jesus fulfilled the 10 commandments, which were only temporary, as was the entire Jewish law.
Gal 3:17-25
We now live in the new covenant (2 Corinthians 3:7-18)

God wouldn’t given Israel 603 more laws if the Big Ten had been a morally complete set of laws. Strangely, those other 603 laws were not included in the Big Ten.