Where did being condemned "as the unbelievers" come from? Those words aren't in the verses being quoted. Since it didn't come from Scripture, where?Paul exhorts: the Galatians, The Ephesians, and the Corinthians, all of whom are Christians, and warns them against practicing a sinful lifestyle of walking after the flesh, and thereby receiving the same condemnation as the unbelievers.
Let no one deceive you with empty words, for because of these things the wrath of God comes upon the sons of disobedience.
7 Therefore do not be partakers with them. Ephesians 5:6-7
Therefore do not be partakers with them.
Do not be a partaker of God's wrath with them.
It's clear that we're never going to agree on much. Your view has been refuted directly from Scripture, which you've chosen to reject.
God never goes back on his promises, and eternal life is a promise: And this is what he promised us—even eternal life. 1 Jn 2:25
Your view has God going back on his promise. Yet the Bible is clear that He always keeps His promise.
Scripture never SAYS that either eternal life or salvation can be lost, given away, forfeited. So there is no reason to think so.
Mish-mashing verses together to try to show that salvation can be lost isn't Biblical.
You've not shown that these verses don't teach eternal security.
Eph 1:13,14 - 13And you also were included in Christ when you heard the word of truth, the gospel of your salvation. Having believed, you were marked in him with a seal, the promised Holy Spirit, 14who is a deposit guaranteeing our inheritance until the redemption of those who are God’s possession—to the praise of his glory.
1. having believed we are marked with a seal, the Holy Spirit
2. the Holy Spirit is a DEPOSIT GUARANTEEING our inheritance
3. having believed, we are God's possession
Eph 4:30 - And do not grieve the Holy Spirit of God, with whom you were sealed for the day of redemption.
1. having believed (1:13) we were sealed for the DAY OF REDEMPTION
2. no verses that even suggest or hint that anyone, including our selves can break this seal
3. this seal is a deposit guaranteeing our inheritance (1:14)
2 Cor 1:22 - set his seal of ownership on us, and put his Spirit in our hearts as a deposit, guaranteeing what is to come.
2 Cor 5:5 - Now it is God who has made us for this very purpose and has given us the Spirit as a deposit, guaranteeing what is to come.
1. here Paul repeats what he wrote to the Ephesians. Those who have believed have the Holy Spirit as a deposit which is a guarantee for the day of redemption, which is "what is to come".
2. all these verses prove that those who have believed have been sealed as a guarantee for the day of redemption.
This same author also described justification (Rom 3:24, 5:15,16,17) and eternal life (Rom 6:23) as gifts of God. And then he wrote that God's gifts are irrevocable in Rom 11:29.
Paul taught eternal security. Your view is in direct contrast with his teachings, which are Biblical.
Unless you can address each of these verses and show by exegesis that they teach something other than eternal security, there is nothing more to discuss.