What is the difference between salvation as you have in mind and to get saved from hell-fire? To Christians
it must be the same. To me, hell-fire does not exist. That's why Jesus had to use it in a parable to go into those symbols. The point anyway was not hell-fire but that the Law is the same and has never changed.
You are correct that the Law is the same and has never changed.
The lake of fire is spoken of in scripture, as is hell.
The word hell is an English word found in translations from Hebrew (sheol) and Greek (gehenna, tartarus, hades).
In Revelation, it is hades that is spoken of.
Revelation 20:14 NASB - 14 Then death and Hades were thrown into the lake of fire. This is the second death, the lake of fire.
The following verses may be something like what you say hell fire.
Mark 9:43 NASB - 43 "If your hand causes you to stumble, cut it off; it is better for you to enter life crippled, than, having your two hands, to go into hell, into the unquenchable fire,
James 3:6 NASB - 6 And the tongue is a fire, the very world of iniquity; the tongue is set among our members as that which defiles the entire body, and sets on fire the course of our life, and is set on fire by hell.
The KJV has these verses.
Matthew 5:22 KJV - 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.
Matthew 18:9 KJV - 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.
Mark 9:47 KJV - 47 And if thine eye offend thee, pluck it out: it is better for thee to enter into the kingdom of God with one eye, than having two eyes to be cast into hell fire: