With pleasure.
Throughout the entire parable, the son was described as a son. That did not change. So it cannot about changing from either physical life and death or eternal life and death.
Is there anywhere else in Scripture that describes one changing from eternal life to death, and then back again? I haven't found any such passage.
So, if the parable is about eternal life and death, then we can conclude that one can have eternal life, lose it and regain it again. But how? Through returning to the father??
But the whole issue (imho) is resolved by the fact that the gift of eternal life is irrevocable (sorry to have to repeat myself), plus the fact that Paul settled the issue clearly regarding the sealing with the Holy Spirit.
I've asked, but no one from the loss of salvation crowd has even tried to explain the verses to prove that Paul wasn't talking about eternal security.
Here's the verses:
Paul clearly taught eternal security in these verses:
Eph 1:13,
14 - 13InHim, you also, after listening to the message of truth, the gospel of your salvation—having also believed, you were sealed in Him with the Holy Spirit of promise, 14who is given as a pledge of our inheritance, with a view to the redemption of God’s own possession, to the praise of His glory.
Eph 4:30 - Do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.
2 Cor 1:22 - who also sealed us and gave us the Spirit in our hearts as a pledge.
2 Cor 5:5 - Now He who prepared us for this very purpose is God, who gave to us the Spirit as a pledge.
So, what has Paul taught here?
First, having believed, we are SEALED IN HIM (union with Christ) with the Holy Spirit of PROMISE, given as a PLEDGE FOR the day of redemption of God's own possession. This seal is a PLEDGE from God.
And consider this verse:
Heb 6:18 - so that by two unchangeable things in which
it is impossible for God to lie, we who have taken refuge would have strong encouragement to take hold of the hope set before us.
So, for one to accept your view of loss of salvation, 2 things are required:
1. Either prove by exegesis that
Eph 1:13,
14 4:30,
2 Cor 1:22 and
5:5 do NOT teach eternal security, or
2. Accept that God DOES break His promises and pledges, which makes Him a liar. Even though Scripture SAYS that it is impossible for God to lie. Titus 1:2 and Heb 6:18