Hebrews 3:12
see to it, brethren, that there is never in any one of you--as perhaps there may be--a sinful and unbelieving heart, manifesting itself in revolt from the ever-living God.
Hebrews 12:25
Be careful not to refuse to listen to Him who is speaking to you. For if they of old did not escape unpunished when they refused to listen to him who spoke on earth, much less shall we escape who turn a deaf ear to Him who now speaks from Heaven.
Matthew 16:16
"You," replied Simon Peter, "are the Christ, the Son of the ever-living God."
Matthew 24:4
"Take care that no one misleads you," answered Jesus;
Mark 7:21-23
For from within, out of men's hearts, their evil purposes proceed--fornication, theft, murder, adultery,
Mark 13:9
"You yourselves must be on your guard. They will deliver you up to Sanhedrins; you will be brought into synagogues and cruelly beaten; and you will stand before governors and kings for my sake, to be witnesses to them for me.
Mark 13:23
But as for yourselves, be on your guard: I have forewarned you of everything.
Mark 13:33
Take care, be on the alert, and pray; for you do not know when it will happen.
Luke 21:8
"See to it," He replied, "that you are not misled; for many will come assuming my name and professing, 'I am He,' or saying, 'The time is close at hand.' Do not go and follow them.
Romans 11:21
Do not be puffed up with pride. Tremble rather--for if God did not spare the natural branches, neither will He spare you.
1 Corinthians 10:12
So then let him who thinks he is standing securely beware of falling.
1 Thessalonians 1:9
For when others speak of us they report the reception we had from you, and how you turned from your idols to God, to be bondservants of the true and ever-living God,
Hebrews 2:1-3
For this reason we ought to pay the more earnest heed to the things which we have heard, for fear we should drift away from them.
Hebrews 3:10
Therefore I was greatly grieved with that generation, and I said, 'They are ever going astray in heart, and have not learnt to know My paths.'
Hebrews 10:38
But it is by faith that My righteous servant shall live; and if he shrinks back, My soul takes no pleasure in him."
Hebrews 12:15
Be carefully on your guard lest there be any one who falls back from the grace of God; lest any root bearing bitter fruit spring up and cause trouble among you, and through it the whole brotherhood be defiled;