2 Peter 1 ends with a warning :19b-21
” ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts:

Knowing this first, that no prophecy of the scripture is of any private interpretation.

For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.”

We need to make sure we believe what the Word actually says.  All understanding of scripture should have 2 or more witnesses, (verses that agree), and all who prophesy, their words, need to agree with scripture.

Which brings us to:

2 Peter: 2. 1.
“But there were false prophets also among the people, even as there shall be false teachers among you, who privily shall bring in damnable heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.”

How do we know who are false prophets and teachers?  Like the Treasury Department, (the Secret Service), we need to know the real deal, so we recognize the false.

We cannot rely on others,  we must have a basic working knowledge, so we we realize whether what we hear matches the Word.  There is no other God, then the Father, Son and Holy Spirit.

We must know them, walk with them, be led by the person of the Holy Spirit.  We need at least an overview of the Word.

Deuteronomy 13:1-5
King James Version (KJV)
“If there arise among you a prophet, or a dreamer of dreams, and giveth thee a sign or a wonder,  And the sign or the wonder come to pass, whereof he spake unto thee, saying, Let us go after other gods, which thou hast not known, and let us serve them;

Thou shalt not hearken unto the words of that prophet, or that dreamer of dreams: for the Lord your God proveth you, to know whether ye love the Lord your God with all your heart and with all your soul.  Ye shall walk after the Lord your God, and fear him, and keep his commandments, and obey his voice, and ye shall serve him, and cleave unto him.

And that prophet, or that dreamer of dreams, shall be put to death; because he hath spoken to turn you away from the Lord your God, which brought you out of the land of Egypt, and redeemed you out of the house of bondage, to thrust thee out of the way which the Lord thy God commanded thee to walk in. So shalt thou put the evil away from the midst of thee.”

We, in our sophisticated society, no longer believe in Spirits, Ghosts, Miracles, signs and wonders.  The Word clearly tells us beware.

Deuteronomy 18:20-22
“But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die.

And if thou say in thine heart, How shall we know the word which the Lord hath not spoken?  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.”

False prophets can also perform signs and wonders.  The Lord allows it:

Deuteronomy 13
“for the Lord your God proveth you, to know whether ye love the Lord your God with all your heart and with all your soul.”

So how can we tell what is truth?  We must know the Word, we  can’t rely on what we see, we must know the Lord.

Jude 1:4
King James Version (KJV)
“For there are certain men crept in unawares, who were before of old ordained to this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying the only Lord God, and our Lord Jesus Christ.”

Ungodly men: 
Men who claim, Holiness, Morality, Honesty are no longer applicable, we are forgiven. 

We need to repent, when we sin, ask forgiveness, live a Holy, Acceptable life,  become a Living Sacrifice knowing the good, acceptable and perfect will of God.

1 Corinthians 6:20
King James Version (KJV)
“For ye are bought with a price: therefore glorify God in your body, and in your spirit, which are God’s.”

Once saved, always saved?
2 Peter: 2. 2.
“And many shall follow their pernicious ways; by reason of whom the way of truth shall be evil spoken of.”

This is one of the many scriptures, that if taken at face value debunk that teaching. (Once saved, always saved),  If Cain could leave the presence of the Lord, (?), turn His back and walk away, then it is possible for us.

Hebrews 6:4-6
King James Version (KJV)
“For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,
And have tasted the good word of God, and the powers of the world to come,  If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame.”

2 Peter 1:9
“But he that lacketh these things is blind, and cannot see afar off, and hath forgotten that he was purged from his old sins.”

Forgotten his Salvation.  The Prodigal Son returned and his Father ran to meet him, if he had not returned, he was still a son, but lost to the Father.

1 Corinthians 3:16-17
“Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?   If any man defile the temple of God, him shall God destroy; for the temple of God is holy, which temple ye are.”

We are indeed forgiven but we must be ready, willing and able to repent when we fall short of the Glory of God.

1 Corinthians 5:5
“To deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.”

A saint in sin, always has the option of repentance.  No repentance,  no forgiveness, sin seperates us from God.

You are welcome to disagree, but back it up with scripture.

“No one can snatch us out of His palm,”  but His hand is open, we can walk off.

Stand fast in your faith, and see the Salvation of the Lord.

Blessings