Is hell just a joke?

" In FLAMING FIRE taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:"

(2 Thessalonians 1:8)
 

"Jesus saith unto him, I am the WAY, the TRUTH, and the LIFE: NO MAN COMETH UNTO THE FATHER, BUT BY ME."

(John 14:6)

 

"Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son" 

(1st John 2:22)