2 Peter 3:17

Now, beloved, you are forewarned: mind you are not carried away by the error of the lawless and so lose your proper footing;

Matthew 7:15

Beware of false prophets; they come to you with the garb of sheep but at heart they are ravenous wolves.

Matthew 16:6

Jesus said to them, "See and beware of the leaven of the Pharisees and Sadducees."

Matthew 16:11

Why do you not see that I was not speaking to you about bread? No, beware of the leaven of the Pharisees and Sadducees."

Matthew 24:24-25

for false Christs and false prophets will rise and bring forward great signs and wonders, so as to mislead the very elect, ??if that were possible.

Mark 13:22-23

for false Christs and false prophets will rise and perform signs and wonders to mislead the elect if they can.

John 16:4

I have told you all this, so that when the time for it arrives, you may remember what I said to you. I did not tell you about this at the beginning, because I was with you then;

Acts 2:42

They devoted themselves to the instruction given by the apostles and to fellowship, breaking bread and praying together.

Romans 16:18

Such creatures are no servants of Christ our Lord, they are slaves of their own base desires; with their plausible and pious talk they beguile the hearts of unsuspecting people. But surely not of you!

1 Corinthians 10:12

So let anyone who thinks he stands secure, take care in case he falls.

1 Corinthians 15:58

Well then, my beloved brothers, hold your ground, immovable; abound in work for the Lord at all times, for you may be sure that in the Lord your labour is never thrown away.

2 Corinthians 11:3

but I am afraid of your thoughts getting seduced from a single devotion to Christ, just as the serpent beguiled Eve with his cunning.

2 Corinthians 11:13-15

'Apostles'? They are spurious apostles, false workmen ??they are masquerading as 'apostles of Christ.'

Colossians 2:5

for although I am absent in body I am with you in spirit, and it is a joy to note your steadiness and the solid front of your faith in Christ.

Colossians 2:8

Beware of anyone getting hold of you by means of a theosophy which is specious make-believe, on the lines of human tradition, corresponding to the Elemental spirits of the world and not to Christ.

2 Timothy 4:15

for he has been bitterly hostile to anything I have said.

Hebrews 3:14

For we only participate in Christ provided that we keep firm to the very end the confidence with which we started,

1 Peter 5:9

Resist him; keep your foothold in the faith, and learn to pay the same tax of suffering as the rest of your brotherhood throughout the world.

2 Peter 1:10-12

So be the more eager, brothers, to ratify your calling and election, for as you practise these qualities you will never make a slip;

2 Peter 2:18-22

By talking arrogant futilities they beguile with the sensual lure of fleshly passion those who are just escaping from the company of misconduct ??19 promising them freedom, when they are themselves enslaved to corruption (for a man is the slave of whatever overpowers him).

Revelation 2:5

Now, remember the height from which you have fallen; repent and act as you did at first. If not, I will come to you [very soon] and remove your lamp stand, unless you repent.

Treasury of Scripture Knowledge

Summary

Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness.

Bible References

Seeing

2 Peter 1:12
Hence I mean to keep on reminding you of this, although you are aware of it and are fixed in the Truth as it is;
Matthew 24:24
for false Christs and false prophets will rise and bring forward great signs and wonders, so as to mislead the very elect, ??if that were possible.
Mark 13:23
Now take care! I am telling you of it all beforehand.
John 16:4
I have told you all this, so that when the time for it arrives, you may remember what I said to you. I did not tell you about this at the beginning, because I was with you then;

Beware

Matthew 7:15
Beware of false prophets; they come to you with the garb of sheep but at heart they are ravenous wolves.
Matthew 16:6
Jesus said to them, "See and beware of the leaven of the Pharisees and Sadducees."
Colossians 2:8
Beware of anyone getting hold of you by means of a theosophy which is specious make-believe, on the lines of human tradition, corresponding to the Elemental spirits of the world and not to Christ.
2 Timothy 4:15
for he has been bitterly hostile to anything I have said.

Being

2 Peter 2:18
By talking arrogant futilities they beguile with the sensual lure of fleshly passion those who are just escaping from the company of misconduct ??19 promising them freedom, when they are themselves enslaved to corruption (for a man is the slave of whatever overpowers him).
Matthew 24:24
for false Christs and false prophets will rise and bring forward great signs and wonders, so as to mislead the very elect, ??if that were possible.
Mark 13:22
for false Christs and false prophets will rise and perform signs and wonders to mislead the elect if they can.
Romans 16:18
Such creatures are no servants of Christ our Lord, they are slaves of their own base desires; with their plausible and pious talk they beguile the hearts of unsuspecting people. But surely not of you!
2 Corinthians 11:3
but I am afraid of your thoughts getting seduced from a single devotion to Christ, just as the serpent beguiled Eve with his cunning.

From

2 Peter 1:10
So be the more eager, brothers, to ratify your calling and election, for as you practise these qualities you will never make a slip;
2 Peter 2:18
By talking arrogant futilities they beguile with the sensual lure of fleshly passion those who are just escaping from the company of misconduct ??19 promising them freedom, when they are themselves enslaved to corruption (for a man is the slave of whatever overpowers him).
Acts 2:42
They devoted themselves to the instruction given by the apostles and to fellowship, breaking bread and praying together.
1 Corinthians 15:58
Well then, my beloved brothers, hold your ground, immovable; abound in work for the Lord at all times, for you may be sure that in the Lord your labour is never thrown away.
Colossians 2:5
for although I am absent in body I am with you in spirit, and it is a joy to note your steadiness and the solid front of your faith in Christ.
Hebrews 3:14
For we only participate in Christ provided that we keep firm to the very end the confidence with which we started,
1 Peter 5:9
Resist him; keep your foothold in the faith, and learn to pay the same tax of suffering as the rest of your brotherhood throughout the world.