Sure it is. It's just not translated from the Greek into the English as de-saved. The reason being that it's obvious that de-salvation is NOT what is meant by the word given the context. But my point is that Jesus, Paul, John and everyone else had a Greek word that could have been used to describe someone becoming de-saved should they have chosen to us it. They just never did use it that way.
They plainly warned ... will not inherit the kingdom.
Not, will not inherit rewards... but will not inherit the kingdom of God itself.
Those who do not inherit the kingdom of God,
will inherit what kingdom?
Now the works of the flesh are evident, which are: adultery,fornication, uncleanness, lewdness, idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies, envy, murders, drunkenness, revelries, and the like; of which I tell you beforehand, just as I also told
you in time past, that
those who practice such things will not inherit the kingdom of God.
Galatians 5:19-21
They plainly warned ... do not be partakers of God's wrath with them.
3 But fornication and all uncleanness or covetousness, let it not even be named among you, as is fitting for saints; 4 neither filthiness, nor foolish talking, nor coarse jesting, which are not fitting, but rather giving of thanks. 5 For this you know, that no fornicator, unclean person, nor covetous man, who is an idolater,
has any inheritance in the kingdom of Christ and God. 6 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 5:3-7
Very plainly warned of partaking of God's wrath, which is the result of not inheriting God's kingdom.
These have no portion in God's kingdom. Their portion, their inheritance, is not in God's kingdom, but rather, it's in the kingdom of Satan, whom these people chose to obey, after declaring that Jesus was their Lord, and would obey Him.
They plainly warned ... if, after they have escaped the pollutions of the world through the knowledge of the Lord and Savior Jesus Christ, they are again entangled in them and overcome, the latter end is worse for them than the beginning. 2 Peter 2:20
These folks were plainly warned that after they had been set free from the dominion of darkness, and had escaped the corrupting pollutions of that kingdom, and were cleansed and forgiven of their sins, if they went back and were entangled again and overcome, being brought back into bondage to that kingdom, then at the end their punishment would be far worse than if they had never known the way of righteousness...
For it would have been better for them not to have known the way of righteousness, than having known it, to turn from the holy commandment delivered to them. 22 But it has happened to them according to the true proverb: “A dog returns to his own vomit,” and, “a sow, having washed, to her wallowing in the mire.”
Plain and clear warnings to Christians.
JLB