2 John 1:9

⁹ πᾶς ὁ προάγων καὶ μὴ μένων ἐν τῇ διδαχῇ τοῦ Χριστοῦ Θεὸν οὐκ ἔχει· ὁ μένων ἐν τῇ διδαχῇ, οὗτος καὶ τὸν Πατέρα καὶ τὸν Υἱὸν ἔχει.