Mark 13:23

But take ye heed: behold, I have foretold you all things.

2 Peter 3:17

Ye, therefore, beloved, knowing these things before, beware, lest ye also being led away by the error of the wicked fall from your own stedfastness:

Mark 13:5

And Jesus answering said, Take heed lest any deceive you.

John 14:29

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

Matthew 7:15

But beware of false prophets, who come to you in sheeps clothing, but inwardly they are ravenous wolves.

Mark 13:9

But take heed to yourselves for they will deliver you to councils, and ye shall be beaten in synagogues, and shall be brought before rulers and kings for my sake, for a testimony to them.

Mark 13:33

Take heed; watch and pray: for ye know not when the time is.

Luke 21:8

And he said, Take heed that ye be not deceived: for many shall come in my name, saying, I am the Christ: And the time is near.

Luke 21:34

But take heed to yourselves, lest at any time your hearts be overloaded with gluttony, and drunkenness, and the cares of this life, and so that day come upon you unawares.

John 16:1-4

I have told you these things, that ye may not be offended. They will put you out of the synagogues;

Treasury of Scripture Knowledge

Summary

But take ye heed: behold, I have foretold you all things.

General references

Bible References

Behold

John 14:29
And now I have told you, before it come to pass, that when it is come to pass, ye may believe.
John 16:1
I have told you these things, that ye may not be offended. They will put you out of the synagogues;

General references

Mark 13:33
Take heed; watch and pray: for ye know not when the time is.
Luke 17:23
And when they shall say to you, See here; see there: go not, nor follow them.