They who live in the knowledge of the One are rightly called “Sons of God,”
as Moses also acknowledges when he says, “Ye are sons of the Lord God” (Deut. 14:1), and “God who begat thee” (Deut. 32:18), and “Is not He Himself thy father?” (Deut 32:6). Indeed with those whose soul is thus disposed it follows that they hold moral beauty to be the only good….
But if there be any as yet unfit to be called a Son of God, let him press to take his place under God’s First-born, the Logos, who holds the eldership among the angels, their ruler as it were. And many names are his, for he is called, “the Beginning,” and the Name of God, and His Logos, and the Man after His Image, and “he that sees,” that is “Israel.”
Philo of Alexandria (1st century)