I said this:
"But that doesn't change anything because the new birth, regeneration and becoming a new creature cannot be undone."
you mean like Lucifer and one third of the angels.
What?! Who said anything about angels being born anew, regenerated, or becoming new creatures on the basis of faith? No one is who. So your question is quite out of line.
Angels are called sons of God.
Please prove that they are in the SAME SENSE as a human who becomes a son of God through faith in Christ. Otherwise, the comparison is illegitimate.
For if God did not spare the angels who sinned, but cast them down to hell and delivered them into chains of darkness, to be reserved for judgment; 2 Peter 2:4
This one verse pretty much ends your OSAS theory.
lol Although, on second thought, you're really serious. Wow.
Unless anyone can show from Scripture that angels ATTAINED the status of sons of God through faith in Christ, like humans do, there is no comparison at all.
So that one point pretty much ends your loss of salvation theory.
Please address my points about the sealing with the Holy Spirit:
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.
The challenge is to prove that this seal can be broken without God becoming a liar. I can't wait for your reply.