2 Peter 3:17
Ye therefore, beloved, knowing this before, be on your guard, that ye be not carried away with the delusion of these lawless men, and fall from your own stedfastness.
Matthew 7:15
Take heed then of false prophets, who come to you in the garb of sheep, but inwardly they are ravening wolves.
Matthew 16:6
Then Jesus said to them, Beware and abstain from the leaven of the Pharisees and of the Sadducees.
Matthew 16:11
How is it that ye do not understand, that I spake not to you of bread, to beware of the leaven of the Pharisees and of the Sadducees?
Matthew 24:24-25
for false Messiahs and false prophets shall arise, and give out great signs and wonders; so as to deceive, if it were possible, even the elect.
Mark 13:22-23
For many false Messiahs and false prophets shall arise, and shall propose signs and wonders to deceive, if it were possible, even the elect.
John 16:4
But these things have I spoken to you, that when the hour is come, ye may remember the same for I had told you. But these things I told you not at the beginning, because I was with you.
Acts 2:42
And they persevered stedfastly in the doctrine of the apostles, and in communion, and in breaking bread, and in prayers.
Romans 16:18
For such are not servants to our Lord Jesus Christ, but to their own belly; and by smooth speeches and flattering commendations deceive the hearts of the guileless.
1 Corinthians 10:12
Wherefore let him that thinketh he standeth, take heed lest he fall.
1 Corinthians 15:58
Wherefore, my beloved brethren, be stedfast, unmoveable, always abounding in the work of the Lord, knowing that your labour is not in vain in the Lord.
2 Corinthians 11:3
But I fear lest as the serpent beguiled Eve by his craftiness, so your minds should be corrupted from the simplicity which belongs to Christ.
2 Corinthians 11:13-15
For such are fake apostles, deceitful labourers, transforming themselves into apostles of Christ.
Ephesians 4:14
that we should be no longer infants, floating on the waves, and carried about with every wind of novel doctrine, by the juggling of men, by their craftiness after the delusive wiles of error;
Philippians 3:2
Beware of dogs, beware of the malicious labourers, beware of the concision.
Colossians 2:5
For though I am absent from you in person, yet I am present with you in spirit, rejoicing and beholding your regular order, and the stedfastness of your faith in Christ.
Colossians 2:8
Beware that no man make a prey of you by means of philosophy and vain delusion, after the tradition of men, after the principles of the world, and not after Christ:
2 Timothy 4:15
against whom be thou also on thy guard, for he hath greatly resisted our words.
Hebrews 3:14
For we are partakers with Christ, if we hold the beginning of our confidence firm unto the end;
1 Peter 5:9
against whom stand fast, firm in the faith, knowing that the very same sufferings are fully endured by the brotherhood which is in the world.
2 Peter 1:10-12
Wherefore the rather, brethren, give diligence to make sure your calling and election: for by doing these things, ye shall never at any time stumble:
2 Peter 2:18-22
Uttering pompous discourses of inanity, ensnaring by the lusts of the flesh, by lascivious impurities, those who had truly escaped from such as live in a course of delusion.
Revelation 2:5
Remember then from whence thou hast fallen, and repent, and practise thy first works; but if not, I am coming to thee quickly, and I will remove thy lamp out of its place, except thou repent.