That’s a given.
Jesus DID think the OT was enough to bring people up to date on who He was.
How do you think they knew who to look for, Einstein?
Oh the irony of TC’s tagline.
The old testament certainly told them who to look for and, of course, they found Him. However, the old testament pretty well ended about then and without the followers of Christ, the Catholic church, you would not have a bible, you would not have a new testament, and you would not know who Jesus Christ was....
Set your bible aside and try to find original writings concerning Jesus....rely on none which use the Bible for reference and they tell me what historical documents that you would use to describe the character of Jesus Christ.....there are none.