Usually Christians counter the universal salvation concept by saying that "narrow is the road and few there be that find it", as well as "many are called but few are chosen". Just one of the thousands of Christian perspectives out there as to what the bible says.
Still, if even one soul wound up not being saved, then Satan has an answer to Paul's question of where death's victory is: "Yo, Paul! Over here!"
Just out of curiosity since there's more than one take on it: What's your definition of "the unforgivable sin"?
Thanks for your reply.
Adam is already one soul that is Not 'saved' .
Satan also is Not saved - Rev 21 v 8
Remember earth is for those who want to obey God.
[ live by the Golden Rule, and Jesus new commandment of John 13 vs 34,35 ]
-Proverbs 2 vs 21,22; 10 v 30; 21 v 18
Matthew 7 v 22 'in that day' ties in with the 'time of separation' of Matthew 25 vs 31,32.
These 'last days' of badness on earth [ 2nd Timothy 3 vs 1-5,13 ] are filled with badness. There are workers of iniquity or lawlessness that are beyond reform or repentance. - 2nd Peter 3 v 9. So, in comparison with earth's population the living 'sheep' alive on earth are in the minority, but that does not include the majority of mankind who have ever lived.
Paul [ 1st Cor. 15 v 55 ] is in connection to Hosea [13 v 14].
God will ransom them from the power of the grave....the grave will be destroyed.
Isaiah wrote [ 25 v 8 ] death would be swallowed up in victory....
Isaiah [ 26 v 19 ] mentions the dead ones [ residents of the dust ] will live, rise up, awaken and cry out with joy....
The victory is that the time will come when there will be No more death.- Rev. 21 vs 4,5
With 'no more death' were is the victory for death ?
In the end there will be No death ever again.
Death will Not claim any more lives.
The resurrection also shows No victory for death.
As far as the unforgivable sin is: that knowledge brings greater responsibility.
Pilate's sin would not be as great as the religious leader's sin.
The religious leader's sins could not be forgiven on the grounds of ignorance.
They had No excuse left for their sins because they had the Scriptures and Jesus, too.
-John 9 v 41; 15 v 24; Hebrews 10 vs 26,27
God, of course, is the final Judge as to one's heart attitude.
Jesus bases his coming judgment of the sheep and goats by how they treat his spiritual 'brothers' that are alive on earth at the time of Matthew 25 v 40.