This guy is talking about a third temple. Is their a third temple in the old testament? He is a Jew.

Not unless one gets creative.

The first Temple was of Solomon, destroyed in the Babylonian conquest.

The second Temple was built by Herod, and destroyed by the Romans.

Third Temple? No.

Unless one considers whatever was built by the Jews when they returned from Babylon as a Temple in its own right. There was something THERE, a center of Jewish worship, where sacrifices were performed. It wasn’t very grand, but it was there. Herod build a huge edifice there, called the second Temple.

Was it really? Or was that the third temple?

Obviously there are Jews and Christians who dwell on old stories who think a Third Temple is to be built, ushering in the end of the world or something. I don’t think that.