Using the Bible’s own words, it can be shown that Jesus is a false prophet.

First, the instructions for identifying a false prophet:

When a prophet speaketh in the name of the LORD, if the thing follow not, nor come to pass, that is the thing which the LORD hath not spoken, but the prophet hath spoken it presumptuously: thou shalt not be afraid of him. Deuteronomy 18:22

Now, the words of Jesus, describing the hellfire and brimstone, including his own return within the lifetime of his audience found in Mark 13:6-31; a sampling of which follows:

12 And brother shall deliver up brother to death, and the father his child; and children shall rise up against parents, and cause them to be put to death.
13 And ye shall be hated of all men for my name’s sake: but he that endureth to the end, the same shall be saved.
14 But when ye see the abomination of desolation standing where he ought not (let him that readeth understand), then let them that are in Judaea flee unto the mountains:
15 and let him that is on the housetop not go down, nor enter in, to take anything out of his house:16 and let him that is in the field not return back to take his cloak.
17 But woe unto them that are with child and to them that give suck in those days!
18 And pray ye that it be not in the winter.
19 For those days shall be tribulation, such as there hath not been the like from the beginning of the creation which God created until now, and never shall be.

 “Brother shall deliver up brother to death, and the father his child??? It doesn’t get much worse than that.  And when will these things happen?

They will happen within the lifetime of Jesus’ audience!

Mark 13:30 Verily I say unto you, that this generation shall not pass, till all these things be done.

Matthew 24:34 Verily I say unto you, This generation shall not pass, till all these things be fulfilled.

Luke 21:30 Verily I say unto you, This generation shall not pass away, till all be fulfilled.

The things Jesus promised would happen, did not happen. Jesus told his audience that “…brother shall deliver up brother to death and the father his child…” will happen in their lifetime. That’s what “This generation shall not pass away” means. Within the lifetime of those hearing Jesus’ words. We know that Jesus really meant what he said because he prefaced it with “Verily I say unto you…” .”Verily” means “I tell you the truth”.

Therefore, using Deuteronomy 18:22 as evidence, we can conclude that Jesus is not a prophet and he has prophesied falsely. He is not to be feared.