2 Corinthians 11:3

but I fear lest, by any means, as the serpent beguiled Eve in his craftiness, your minds should be corrupted from the simplicity and purity which is toward Christ.

Revelation 12:9

And the great dragon was cast down, the old serpent, he that is called the Devil and Satan, who deceives the whole habitable earth; he was cast down to the earth, and his angels were cast down with him.

John 8:44

Ye are of your father the Devil; and the desires of your father ye wish to do. He was a murderer from the beginning, and has not stood in the truth, because there is no truth in him. When he speaks a lie, he speaks of his own; because he is a liar, and the father of it.

1 Timothy 2:14

And Adam was not deceived; but the woman, being deceived, has fallen into transgression.

Galatians 1:6

I marvel that ye are so quickly removing from Him Who called you in the grace of Christ, to a different Gospel,

Galatians 3:1

O foolish Galatians! Who bewitched you, before whose eyes Jesus Christ was openly set forth crucified?

Colossians 2:4

This I say, that no one may delude you with persuasive speech;

Colossians 2:8

Beware, lest there should be any one who makes a spoil of you through his philosophy and vain deceits, according to the tradition of men, according to the rudiments of the world, and not according to Christ;

Matthew 24:24

for there will arise false Christs and false prophets; and they will give great signs and wonders, so as to lead astray, if possible, even the elect.

Acts 20:30-31

and from among yourselves will men arise, speaking perverse things, to draw away the disciples after them.

Romans 12:8

or he that exhorts, in his exhortation; he that imparts, let him do it with liberality; he that presides, with diligence; he that shows mercy, with cheerfulness.

Romans 16:18-19

For those who are such are not serving our Lord Christ, but their own belly; and, through their kind words and flattering speeches, they beguile the hearts of the simple.

2 Corinthians 1:12

For our glorying is this, the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom, but in the grace of God, we behaved ourselves in the world, and more abundantly toward you.

2 Corinthians 2:17

For we are not as the many, making merchandise of the word of God; but as of sincerity, but as of God, in the sight of God, we speak in Christ.

2 Corinthians 4:2

but we renounced the hidden things of shame, not walking in craftiness, not handling the word of God deceitfully; but, by the manifestation of the truth, commending ourselves to every man's conscience in the sight of God.

2 Corinthians 11:13-15

For such men are false apostles, deceitful workers, transforming themselves into apostles of Christ;

2 Corinthians 11:29

Who is weak, and I am not weak? Who is caused to stumble, and I burn not?

2 Corinthians 12:20-21

For I fear, lest by any means, when I come, I should find you not such as I desire, and that I, too, should be found by you such as ye do not desire; lest, by any means, there should be strife, jealousy, wraths, factions, backbitings, whisperings, swellings, tumults;

Galatians 2:4

and that was because of the false brethren secretly introduced, who, indeed, crept in to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage;

Galatians 4:11

I am afraid of you, lest by any means I have toiled for you in vain.

Ephesians 4:14

that we may no longer be babes, billow-tossed, and carried about with every wind of teaching, in the sleight of men, in the craftiness suited to the artifice of error;

Ephesians 6:24

Grace be with all who love our Lord Jesus Christ in incorruptness.

Philippians 3:18-19

For many are walking, of whom I often told you, and now tell you even weeping, that they are the enemies of the cross of Christ.

Colossians 2:18

Let no one rob you of your prize, wishing to do it in humility and in a worshipping of angels, speculating about the things which he has seen, being vainly puffed up by the mind of his flesh,

1 Thessalonians 3:5

For this reason, I also, no longer enduring it, sent, that I might know your faith, lest by some means the tempter tempted you, and our labor should be in vain.

2 Thessalonians 2:3-11

Let no one deceive you in any manner; because that day will not come, unless the falling away come first, and the man of lawlessness be revealed??he son of perdition;

1 Timothy 1:3

As I exhorted you to continue in Ephesus, when I was journeying into Macedonia, that you might charge certain ones not to teach a different doctrine,

1 Timothy 4:1-4

But the Spirit expressly saith, that in later times, some will fall away from the faith, giving heed to seducing spirits, and to teachings of demons,

2 Timothy 3:1-9

But know this, that in the last days perilous times will come;

2 Timothy 3:13

But evil men and imposters will grow worse and worse, deceiving and being deceived.

2 Timothy 4:3-4

For there will be a time when they will not endure the healthful teaching; but, having itching ears, they will for themselves heap up teachers according to their own desires;

Titus 1:10

For there are many unruly men, vain-talkers and deceivers, especially those of the circumcision,

Hebrews 13:9

Be not carried away by manifold and strange teachings; for it is good that the heart be established with grace, not with foods, in which those who occupied themselves were not profited.

2 Peter 2:1-14

But there arose false prophets also among the people, as among you also there will be false teachers, who, indeed, will stealthily bring in destructive heresies, denying even the Master Who bought them, bringing upon themselves swift destruction:

2 Peter 3:3

Knowing this first, that there will come in the last days scoffers with scoffing, walking after their own desires,

2 Peter 3:17

Ye, therefore, beloved, knowing these things beforehand, be on your guard, lest, being carried away with error of the wicked, ye fall from your own steadfastness.

1 John 2:18

Little children, it is the last hour; and, as ye heard that Anti-Christ is coming, even now many anti-christs have arisen; whence we know that it is the last hour.

1 John 4:1

Beloved, believe not every spirit, but try the spirits, whether they are of God; because many false prophets have gone forth into the world.

Jude 1:4

For there crept in stealthily certain men, who of old were set forth for this condemnation, ungodly men, changing the grace of our God into lasciviousness; and denying the only Master and our Lord Jesus Christ.

Revelation 20:2

And he seized the dragon, the old serpent, which is the Devil and Satan, and bound him for a thousand years,

Treasury of Scripture Knowledge

Bible References

I fear

2 Corinthians 11:29
Who is weak, and I am not weak? Who is caused to stumble, and I burn not?
2 Corinthians 12:20
For I fear, lest by any means, when I come, I should find you not such as I desire, and that I, too, should be found by you such as ye do not desire; lest, by any means, there should be strife, jealousy, wraths, factions, backbitings, whisperings, swellings, tumults;
Galatians 1:6
I marvel that ye are so quickly removing from Him Who called you in the grace of Christ, to a different Gospel,
Galatians 3:1
O foolish Galatians! Who bewitched you, before whose eyes Jesus Christ was openly set forth crucified?
Galatians 4:11
I am afraid of you, lest by any means I have toiled for you in vain.
Philippians 3:18
For many are walking, of whom I often told you, and now tell you even weeping, that they are the enemies of the cross of Christ.

As

John 8:44
Ye are of your father the Devil; and the desires of your father ye wish to do. He was a murderer from the beginning, and has not stood in the truth, because there is no truth in him. When he speaks a lie, he speaks of his own; because he is a liar, and the father of it.
1 Timothy 2:14
And Adam was not deceived; but the woman, being deceived, has fallen into transgression.
Revelation 12:9
And the great dragon was cast down, the old serpent, he that is called the Devil and Satan, who deceives the whole habitable earth; he was cast down to the earth, and his angels were cast down with him.
Revelation 20:2
And he seized the dragon, the old serpent, which is the Devil and Satan, and bound him for a thousand years,

So

2 Corinthians 11:13
For such men are false apostles, deceitful workers, transforming themselves into apostles of Christ;
2 Corinthians 2:17
For we are not as the many, making merchandise of the word of God; but as of sincerity, but as of God, in the sight of God, we speak in Christ.
2 Corinthians 4:2
but we renounced the hidden things of shame, not walking in craftiness, not handling the word of God deceitfully; but, by the manifestation of the truth, commending ourselves to every man's conscience in the sight of God.
Matthew 24:24
for there will arise false Christs and false prophets; and they will give great signs and wonders, so as to lead astray, if possible, even the elect.
Acts 20:30
and from among yourselves will men arise, speaking perverse things, to draw away the disciples after them.
Galatians 1:6
I marvel that ye are so quickly removing from Him Who called you in the grace of Christ, to a different Gospel,
Galatians 2:4
and that was because of the false brethren secretly introduced, who, indeed, crept in to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage;
Galatians 3:1
O foolish Galatians! Who bewitched you, before whose eyes Jesus Christ was openly set forth crucified?
Ephesians 4:14
that we may no longer be babes, billow-tossed, and carried about with every wind of teaching, in the sleight of men, in the craftiness suited to the artifice of error;
Ephesians 6:24
Grace be with all who love our Lord Jesus Christ in incorruptness.
Colossians 2:4
This I say, that no one may delude you with persuasive speech;
2 Thessalonians 2:3
Let no one deceive you in any manner; because that day will not come, unless the falling away come first, and the man of lawlessness be revealed??he son of perdition;
1 Timothy 1:3
As I exhorted you to continue in Ephesus, when I was journeying into Macedonia, that you might charge certain ones not to teach a different doctrine,
1 Timothy 4:1
But the Spirit expressly saith, that in later times, some will fall away from the faith, giving heed to seducing spirits, and to teachings of demons,
2 Timothy 3:1
But know this, that in the last days perilous times will come;
2 Timothy 4:3
For there will be a time when they will not endure the healthful teaching; but, having itching ears, they will for themselves heap up teachers according to their own desires;
Titus 1:10
For there are many unruly men, vain-talkers and deceivers, especially those of the circumcision,
Hebrews 13:9
Be not carried away by manifold and strange teachings; for it is good that the heart be established with grace, not with foods, in which those who occupied themselves were not profited.
2 Peter 2:1
But there arose false prophets also among the people, as among you also there will be false teachers, who, indeed, will stealthily bring in destructive heresies, denying even the Master Who bought them, bringing upon themselves swift destruction:
2 Peter 3:3
Knowing this first, that there will come in the last days scoffers with scoffing, walking after their own desires,
1 John 2:18
Little children, it is the last hour; and, as ye heard that Anti-Christ is coming, even now many anti-christs have arisen; whence we know that it is the last hour.
1 John 4:1
Beloved, believe not every spirit, but try the spirits, whether they are of God; because many false prophets have gone forth into the world.
Jude 1:4
For there crept in stealthily certain men, who of old were set forth for this condemnation, ungodly men, changing the grace of our God into lasciviousness; and denying the only Master and our Lord Jesus Christ.
Revelation 12:9
And the great dragon was cast down, the old serpent, he that is called the Devil and Satan, who deceives the whole habitable earth; he was cast down to the earth, and his angels were cast down with him.

The simplicity

2 Corinthians 1:12
For our glorying is this, the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom, but in the grace of God, we behaved ourselves in the world, and more abundantly toward you.
Romans 12:8
or he that exhorts, in his exhortation; he that imparts, let him do it with liberality; he that presides, with diligence; he that shows mercy, with cheerfulness.
Romans 16:18
For those who are such are not serving our Lord Christ, but their own belly; and, through their kind words and flattering speeches, they beguile the hearts of the simple.

General references

1 Corinthians 3:11
for other foundation can no man lay than that which is laid, which is Jesus Christ.
2 Corinthians 2:11
that we might not be over-reached by Satan; for we are not ignorant of his devices.
1 Timothy 2:14
And Adam was not deceived; but the woman, being deceived, has fallen into transgression.