D.Chr. 37.12
Orationes
Speech 37, section 12
αἱ μὲν γὰρ ἄλλαι λήξεις τε καὶ κτή-
σεις τῶν θεῶν κατὰ μόνας εἰσίν· Ἄργος μὲν Ἥρας, Ἀθηνᾶς δὲ
Ἀθῆναι· καὶ αὐτῶν γε τούτων τῶν θεῶν Ῥόδος μὲν Ἠλίου, Ὀγχη-
στὸς δὲ Ποσειδῶνος, Κόρινθος δὲ ἑκατέρων. εἰκάσαις ἂν αἰνιττο-
μένου τοῦ μύθου τὸ τῆς γῆς ἐν μέσῳ δύο πελαγῶν ὑπὸ τοῦ ἡλίου
ἐξαίρετον [βουλομένου τοῦ Ποσειδῶνος].
For while the others [cities] are the portion and property of the gods individually--Argos of Hera and Athens of Athena--and while, with reference to these very gods of whom I speak, Rhodes belongs to Helius and Onchestus to Poseidon, Corinth belongs to each of the two. You might imagine, since the myth suggests it, that the strip of land between the two seas was an exceptional grant made by Helius because Poseidon wished it so.
H. Crosby (1962)