I do not believe that there is mercy beyond the grave. I would like to see the primary, clearest verses which proponents of Universal Reconciliation [UR] believe support their beliefs.
Here are three vss. which I believe totally refute UR.
Matthew 7:21-23
(21) Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
(22) Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?
(23) And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.
Where is a verse where Jesus, Himself, is speaking and says "I now know you, welcome to my kingdom." or words to that effect?
More vss. where Jesus, Himself, speaking
John 3:15-18
(15) That whosoever believeth in him should not perish, but have eternal life.
(16) For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
(17) For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
(18) He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
Matthew 25:46
(46) And these shall go away into everlasting punishment: but the righteous into life eternal.