Now a mediator is not a mediator of one, but God is one.
A mediator, however, implies more than one party; but God is one.
Ὁ δὲ μεσίτης ἑνὸς οὐκ ἔστιν, ὁ δὲ Θεὸς εἷς ἐστίν.
O de mesitēs enos oyk estin, o de Theos eis estin.