Mark 13:23

But beware; I have foretold you all things.

2 Peter 3:17

Do you therefore, beloved, knowing [these things] before, be on your guard not to be carried away with the error of the wicked and fall from your steadfastness,

Mark 13:5

And Jesus said to them, See that no man deceives you;

John 14:29

And now I have told you before it occurs, that when it occurs you may believe.

Matthew 7:15

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

Mark 13:9

But take heed to yourselves; they shall deliver you up to Sanhedrims, and you shall be beaten in synagogues, and shall be brought before governors and kings for my sake, for a testimony to them.

Mark 13:33

Observe, watch, for you know not when the time is.

Luke 21:8

And he said, See that you be not deceived; for many shall come in my name, saying, I am [Christ], and the time is at hand; go not after them.

Luke 21:34

Take heed to yourselves, that your hearts be not oppressed with revelling and drunkenness, and worldly cares, and that day come upon you suddenly;

John 16:1-4

These things I have said to you, that you may not be offended.

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 occurs, that when it occurs you may believe.
John 16:1
These things I have said to you, that you may not be offended.

General references

Mark 13:33
Observe, watch, for you know not when the time is.
Luke 17:23
And they shall say to you, Behold there! behold here! go not away, nor follow them.