Theologians claim to be able to divide Torah into parts which apply differently to different groups of people: [1] Moral laws for all Mankind (e.g. Le 19:18), [2] Civil laws only for Jews (e.g. De 20:1-4), and [3] Ceremonial laws for priests. (e.g. De 18:6-8) This is commonly used to teach that only Moral laws are relevant today.
The problem is this hermeneutic is not found in Scripture; while certain laws are explicitly directed toward specific groups, Scripture never limits the relevance of Torah on any other grounds.
Clearly, if a command is directed toward a group to which we don’t belong, we cannot break it because the command is not to us. However, if we disregard a command which we’re able to obey then we’re actually breaking it, unless we can show from Scripture we’re exempt.
Though Torah was given to Israelites on Mount Sinai thousands of years ago, Christ Himself says whosoever (Jew or Gentile, man or woman, adult or child) disregards one of these least commands will be counted least in His kingdom. (Mt 5:19a) Kingdom greatness is reflected by respecting even the most insignificant laws of Torah. (19b) This aligns with Torah itself. (Ps 119:4-6)
So, Christ is effectively teaching us we should all be keeping every law in Torah which we’re able to keep: any law not specifically addressed to someone else.
And since Christ’s nature within us delights in Torah (Ro 7:22) as a reflection of Jehovah’s majesty, holiness and character, one of the primary ways He’s revealed Himself, the godly aren’t looking for loopholes; we’re looking for every opportunity to honor God’s Way as well as we can.
So, as we’re working through passages which appear to teach otherwise (and there are a few) think of Torah wholistically (Ja 2:10-11), don’t pick out one of these least commandments; consider whether Paul could be saying we don’t need to love God with all our heart (De 6:4-5) or our neighbors as ourselves. (Le 19:18) On these two hang all the rest (Mt 22:40): we can’t separate them.
As we expose our cognitive bias to the light of Torah and square ourselves with the fact that every single one of God’s Laws is precious and good (Ro 7:12), we invariably find better ways to understand each text and reconcile it will all of Scripture.