The perilious time would just has Jesus had said . This when the world would be full of wars,poverty, diseases, hatred, expansion of knowledge (inventions of dangerous materials).

Bible reference on it .

2 Peter 1:16
For we have not followed cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty.

John 1:29

The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world. Mark 14:62

And Jesus said, I am: and ye shall see the Son of man sitting on the right hand of power, and coming in the clouds of heaven.

Matthew 26:64

Jesus saith unto him, Thou hast said: nevertheless I say unto you, Hereafter shall ye see the Son of man sitting on the right hand of power, and coming in the clouds of heaven.

2 Thessalonians 2:1

Now we beseech you, brethren, by the coming of our Lord Jesus Christ, and by our gathering together unto him,

Revelation 4:2 And immediately I was in the spirit: and, behold, a throne was set in heaven, and one sat on the throne.

Revelation 2:1 Unto the angel of the church of Ephesus write; These things saith he that holdeth the seven stars in his right hand, who walketh in the midst of the seven golden candlesticks.

Revelation 5:1-10 And I saw in the right hand of him that sat on the throne a book written within and on the backside, sealed with seven seals.

And I saw a strong angel proclaiming with a loud voice, Who is worthy to open the book, and to loose the seals thereof?

And no man in heaven, nor in earth, neither under the earth, was able to open the book, neither to look thereon.

And I wept much, because no man was found worthy to open and to read the book, neither to look thereon.

And one of the elders saith unto me, Weep not: behold, the Lion of the tribe of Juda, the Root of David, hath prevailed to open the book, and to loose the seven seals thereof.

And I beheld, and, lo, in the midst of the throne and of the four beasts, and in the midst of the elders, stood a Lamb as it had been slain, having seven horns and seven eyes, which are the seven Spirits of God sent forth into all the earth.

And he came and took the book out of the right hand of him that sat upon the throne.

And when he had taken the book, the four beasts and four and twenty elders fell down before the Lamb, having every one of them harps, and golden vials full of odours, which are the prayers of saints.

And they sung a new song, saying, Thou art worthy to take the book, and to open the seals thereof: for thou wast slain, and hast redeemed us to God by thy blood out of every kindred, and tongue, and people, and nation;

And hast made us unto our God kings and priests: and we shall reign on the earth.

The coming of Jesus.

I tell you don't let any one fool that Jesus wouldn't come back all what is written that would happen is Happening I beseech you that you flush out those evil thoughts and follow the Jesus leading.