Yes the Old Testament law/Torah because the Torah is the law of the New Covenant.

Read Jeremiah 31 where the New Covenant is first prophesied the law of there is the Torah.

Well did Peter speak and warn about men like you.

as also in all his letters, speaking in them concerning these matters , in which some are hard to understand, which those who are untaught and unstable twist to their own destruction, as they do also the other Scriptures.
Kĕpha Bĕt (2 Peter) 3:16 TS2009