Romans 2:14 in Greek reads ὅταν γὰρ ἔθνη τὰ μὴ νόμον ἔχοντα φύσει τὰ τοῦ νόμου ποιῶσιν, οὗτοι νόμον μὴ ἔχοντες ἑαυτοῖς εἰσιν νόμος·
We can translate this as ‘For whenever gentiles who do not have Torah naturally do the things of the Torah, they are the Torah for themselves, though not having the Torah.’