Hebrews 10:28-31
28 He that despised Moses' law died without mercy under two or three witnesses:
29 Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite unto the Spirit of grace?
30 For we know him that hath said, Vengeance belongeth unto me, I will recompense, saith the Lord. And again, The Lord shall judge his people.
31 It is a fearful thing to fall into the hands of the living God.
"It is mine to avenge; I will repay,""The Lord will judge his people.""It is a dreadful thing to fall into the hands of the living God." Doesn't sound like universal reconciliation to me.
ETA;
Jesus mentioned a fate worse than death three times.
“But whoso shall offend one of these little ones which believe in me, it were better for him that a millstone were hanged about his neck, and that he were drowned in the depth of the sea.” Matthew 18:6
“woe unto that man by whom the Son of man is betrayed! it had been good for that man if he had not been born. ” Matthew 26:24
“But I say unto you, that it shall be more tolerable in that day for Sodom, than for that city.” Luke 10:12