2.  And again on hearing of a “Son,” think not of an adopted son but a Son by nature θετόν.  Athanasius (de Sententiâ Dionysii, § 23), represents Arius as saying that the Word “is not by nature (κατὰ φύσιν) and in truth Son of God, but is called Son, He too, by adoption (κατὰ θέσιν), as a creature.”  Again (c. Arian. Orat. iii. 19), he says, “This is the true God and the Life eternal, and we are made sons through Him by adoption and grace (θέσει καὶ χάριτι).”  Cf. vii. 10, and § 4, below., an Only-begotten Son, having no brother.  For this is the reason why He is called “Only-begotten,” because in the dignity of the Godhead, and His generation from the Father, He has no brother.  But we call Him the Son of God, not of ourselves, but because the Father Himself named Christ The mss. all read αὐτὸν Χριστόν which might mean “Christ and no other.”  But Χριστόν is probably a gloss introduced from the margin. His Son Compare the passages in which Cyril quotes Ps. ii. 7, as Cat. vii. 2; x. 2; xi. 5; xii. 18.:  and a true name is that which is set by fathers upon their children “It was one of the especial rights of a father to choose the names for his children, and to alter them if he pleased” (Dict. Greek and Roman Antiq. “Nomen. 1 Greek.”)  The right to the name given by the father is the subject of one of the Private Orations of Demosthenes (Πρὸς Βοιωτὸν περὶ τοῦ ὀνόματος)..