2 Pet 3:16

ὡς καὶ ἐν πάσαις ⸀ταῖς ἐπιστολαῖς λαλῶν ἐν αὐταῖς περὶ τούτων, ἐν ⸀αἷς ἐστιν δυσνόητά τινα, ἃ οἱ ἀμαθεῖς καὶ ἀστήρικτοι ⸀στρεβλοῦσιν ὡς καὶ τὰς λοιπὰς γραφὰς πρὸς τὴν ἰδίαν αὐτῶν ἀπώλειαν.

He writes this way in all his letters, speaking in them about such matters. Some parts of his letters are hard to understand, which ignorant and unstable people distort, as they do the rest of the Scriptures, to their own destruction.