Mark 13:23

But do you take heed: behold, I have told you all things beforehand.

2 Peter 3:17

Do you, therefore, beloved, since you know these things be forehand, beware, lest, being led away with the error of the wicked, you fall from your own steadfastness.

Mark 13:5

Jesus answering them, began to say: Take heed, lest any one deceive you.

John 14:29

And now I have told you before it comes to pass, that when it does come to pass, you may believe.

Matthew 7:15

But beware of false prophets, who come to you in sheep's clothing, but within are ravenous wolves.

These are the beginning of sorrows. But take heed to yourselves; for they will deliver you up to councils, and you will be scourged in the synagogues; and you will stand before governors and kings for my sake, for a testimony against them.

Mark 13:33

Take heed, watch and pray: for you know not when the time is.

Luke 21:8

He replied: Take heed that you be not deceived; for many will come in my name, saying: I am he; and, The time is near. Go not, therefore, after them.

Luke 21:34

And take heed to yourselves, lest your hearts become heavy with reveling and drunkenness and the cares of life, and that day come upon you when you look not for it.