25 Behold, I have told you before.
Matthew 24:25 Cross References - AKJV
Isaiah 44:7-8
7 And who, as I, shall call, and shall declare it, and set it in order for me, since I appointed the ancient people? and the things that are coming, and shall come, let them show to them.
8 Fear you not, neither be afraid: have not I told you from that time, and have declared it? you are even my witnesses. Is there a God beside me? yes, there is no God; I know not any.
Isaiah 46:10-11
10 Declaring the end from the beginning, and from ancient times the things that are not yet done, saying, My counsel shall stand, and I will do all my pleasure:
11 Calling a ravenous bird from the east, the man that executes my counsel from a far country: yes, I have spoken it, I will also bring it to pass; I have purposed it, I will also do it.
Isaiah 48:5-6
5 I have even from the beginning declared it to you; before it came to pass I showed it you: lest you should say, My idol has done them, and my graven image, and my molten image, has commanded them.
6 You have heard, see all this; and will not you declare it? I have showed you new things from this time, even hidden things, and you did not know them.
Luke 21:13
13 And it shall turn to you for a testimony.
John 16:1
1 These things have I spoken to you, that you should not be offended.