It's pretty obvious that +Paul is talking about Christians:
Therefore I endure all things for the sake of the elect, that they also may obtain the salvation, which is in Christ Jesus, with heavenly glory. A faithful saying: for if we be dead with him, we shall live also with him. If we suffer, we shall also reign with him. If we deny him, he will also deny us. If we believe not, he continueth faithful, he can not deny himself. Of these things put them in mind, charging them before the Lord.
But then, why bother with context when you're an infallible Protestant?
And who are the unjust? Those that are NOT saved
A nice assertion, but not backed up by Scripture. The unjust are those who do unjust things, such as the sins which he then proceeds to list. He's clearly warning the Corinthians not to backslide into the sins that they were doing before.
Do you really want to make the claim that Christ promise is not true.
Christ's promise is perfectly true: "To him, that overcometh, I will give to eat of the tree of life, which is in the paradise of my God." (Apocalypse of St. John 2:7)
That God would break his promise, and he can not kept his inherited children?
"Now if any man have not the Spirit of Christ, he is none of his. ... whosoever are led by the Spirit of God, they are the sons of God." (Rom. 8:9, 14)
You can't LOSE eternal life or it was really never ETERNAL to begin with.
Eternal life is eternal because it is God's own life given to us (see 2 Peter 1:4: "made partakers of the divine nature"). As regards us, some are elected only to grace, not to glory. That is why we read that we are "heirs, according to hope, of everlasting life." (Titus 3:7) Hope has something certain, namely God's promise to give eternal life to all dying in the state of grace ("If we believe not, he continueth faithful, he can not deny himself" 2 Tim. 2:13), and also something uncertain, our conduct ("If we suffer, we shall also reign with him. If we deny him, he will also deny us" 2 Tim. 2:12).
Therefore I endure all things for the sake of the elect, that they also may obtain the salvation, which is in Christ Jesus, with heavenly glory.
So with this example you use, is Paul actually writing to those who have not obtained salvation yet as indicated?
The unjust are those who do unjust things, such as the sins which he then proceeds to list. He's clearly warning the Corinthians not to backslide into the sins that they were doing before.
I agree with you on this, but there is nothing about losing their salvation. It is IMPOSSIBLE for a man to gain salvation by NOT sinning. The requirement is not to be PERFECT (which is exactly what you're saying)through NOT sinning, it's to be perfect through Christ, who God's sees in our stead.
If you're correct then all of us have to be sinless and believe in Christ at the same time to gain our salvation. So it eventually has to come down to YOU being GOOD enough to get into heaven, not Christ...
I wonder how many sins you and I are committing without even knowing it? So therefore, according to what you're saying, we have lost our salvation?