The real fire challenge:
John 1:12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
John 3:18 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.
John 9:35 Jesus heard that they had cast him out; and when he had found him, he said unto him, Dost thou believe on the Son of God?
1John 3:23 And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.
1John 5:13 These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.
Matt. 5:22 But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.
Matt. 7:19 Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.
Matt. 13:40 As therefore the tares are gathered and burned in the fire; so shall it be in the end of this world.
Matt. 13:42 And shall cast them into a furnace of fire: there shall be wailing and gnashing of teeth.
Matt. 13:50 And shall cast them into the furnace of fire: there shall be wailing and gnashing of teeth.
Matt. 18:8 Wherefore if thy hand or thy foot offend thee, cut them off, and cast them from thee: it is better for thee to enter into life halt or maimed, rather than having two hands or two feet to be cast into everlasting fire. 9 And if thine eye offend thee, pluck it out, and cast it from thee: it is better for thee to enter into life with one eye, rather than having two eyes to be cast into hell fire.
Matt. 25:41 Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels: