​The Law given as part of the Old Covenant is no longer in force (including the Decalogue), since the Old Covenant no longer is in force.

However, the moral precepts which undergird the laws of the Old Covenant are still relevant.

That’s because God’s overarching command to “be holy for I am holy” …

Is re-stated multiple times in both the Old and New Testament and still applies.

God’s nature does not change, and neither have His moral precepts …

Which are part of God’s own, immutable self-revelation throughout Scripture.

So be holy …

But not Old Covenant.