Yes, I believe this scripture:

But know this first of all, that no prophecy of scripture is a matter of one’s own interpretation, for no prophecy was ever made by an act of human will, but men, moved by the Holy Spirit, spoke from God.

I don’t hold to the view that Jesus Christ is the Holy Spirit as you seem to be alluding to though.

And yes I agree with the following in Revelation because it is written and is where I think you are going with this. God gave the revelation to Jesus Christ, so the testimony he gives is the prophecy in the Book of Revelation:

The testimony of Jesus Is the Spirit of Prophecy…