Do you see the oldest son as never sinning and therefore never becioming spiritually dead because he was always with the father? That would then make scripture incorrect again when Paul says we have all sinned and come short of the glory of God. The oldest never left yet you say that the youngest died spiritually when He left that would then mean there are some who need no salvation because they never left the fathers house.
That is not so. Paul clearly taught that Esau and Jacob had done no evil while in their mother's womb.
Rom 9:11 (For
the children being not yet born,
neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth; )
It is also important to note that they had done no good either.
If Esau and Jacob had died in the womb could they be sinners? NO. Therefore they are spiritually alive, they are not separated by sin from the Father.
I believe this is the elder son in Luke 15 who said he never transgressed at any time his father's commandments. Who else could say this but a child?
Luk 15:29 And he answering said to
his father, Lo, these many years do I serve thee,
neither transgressed I at any time thy commandment: and yet thou never gavest me a kid, that I might make merry with my friends:
30 But as soon as this thy son was come, which hath devoured thy living with harlots, thou hast killed for him the fatted calf.
31 And he said unto him,
Son, thou art ever with me, and all that I have is thine.
32 It was meet that we should make merry, and be glad:
for this thy brother was dead, and is alive again; and was lost, and is found.
The elder son said he had never at any time transgressed his father's commandment. Who else but a child who has never sinned could say this? The father did not correct or rebuke the elder son, he said he was "ever with me". Who could say this except a child who had died and had never been separated from the Father?
Notice the father told the elder that his younger brother had been "dead" and "lost" which implies the elder son had never been dead or lost.
Put this together with Paul in Rom 7:9 where he said he was alive without the law once, but when the commandment came, sin revived and he died.
I believe Paul is speaking of being alive when he was a child, but when he matured and understood right from wrong, the commandment he thought would bring life convicted him of sin and slew him.
Rom 7:9 For I was alive without the law once: but when the commandment came, sin revived, and
I died.
10 And the commandment, which
was ordained to life, I found
to be unto death.
11 For sin, taking occasion by the commandment, deceived me, and by it
slew me.
Folks are so used to Augustine's false doctrine that they cannot understand scripture like this. If a person sees we are born upright as Ecc 7:29 says, and then later goes astray in sin and becomes lost as the prodigal, then all these scriptures make perfect sense.