Turning a bit, to the meaning of being "fathered by God, lets consider the difficult verse, 1 John 5:18. Here we find a verse that is translated a slew of very different ways, making it possible to object to any version we think is probably best.
NASB 1 John 5:18 said:
18 We know that no one who is born of God sins; but He who was born of God keeps him, and the evil one does not touch him.
1) Various translations have no one fathered (or born) of God sins, or Everyone fathered (or born) of God does not sin. But since either view says the same thing, this problem simply muddies the water.
2) Next, in the NASB, we get "He" who was born of God...." Here, if we look at the modern translations, we get three very different positions:
(1) He, or the One, or Jesus
(2) God
(3) the fallen human who has been born anew
Apparently textual variants support (or can be claimed to support) each of this very different interpretations.
Our interest is in accepting that God (the Father or the Son) is doing the action, rather than claiming the born anew person keeps himself from the penalty of present and future sinful thoughts and deeds.
Thus, my understanding of 1 John 5:18 is "We know that no one fathered by God sins, but God keeps (protects) him, and evil does not touch (harm) him.
Bottom line, if we are fathered by God we have the Spirit of His Son sent into our hearts, and God protects us so that even if we think or do sinful things, it is just as if we had not sinned, for no one fathered by God "sins." Hence, when we are "fathered" we are "justified."