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Peter, the reference in the link to "failed prophecies of Jesus" can only be the result of reading the Gospel with closed eyes.
What Jesus prophesied (as mentioned in the link) came about, namely on the day of Pentecost (about 40 days after Jesus ascended to Heaven).
Many Jews had gathered in Jerusalem, following a law of Moses to gather every year on that date at tha Altar of God and present the prescribed offerings.
The Altar was in the Temple, and that was the place they were heading for, Jews from Jerusalem, Judea and Galilee and from all over the Diaspora (not all Jews, but those who could make it).
But on that day, the Spirit came to another house in Jerusalem, where the disciples and adherents of Jesus were gathered, and these spoke in many tongues to the people, and several thousand Jews converted on that day and in the following days and weeks.
The new Altar of God was with these disciples and adherents, who became Apostles, and the old altar in the Temple had no more spiritual value.
About forty years later, the Temple and old altar were destroyed utterly and completely, so that not 2 bricks remained one on the other.
Just as Jesus prophesied, and many who had lived in the days of Jesus, from that generation, witnessed this or heard of it after it happened.
The Apostles, however, who were not bound to the old altar, continued preaching the Gospel, and the Evangelists put the Gospel in writing.
The Word of Jesus is not a failed prophecy, and it is totally absurd for the authors of the link to suggest otherwise.
History books with well-documented accounts from Josephus (a Jew) who lived in the 66-70 AD Jewish revolt, inform us quite clearly that the old altar in Jerusalem passed away with the old temple, so the authors of the link may-be never attended a history lesson on the period they are writing about, hence their absurd assertions about "failed prophecies" of Jesus.
Jesus in fact was talking to a Jewish audience, and any Jew today can confirm that indeed the old temple and altar within it passed away within a generation (biblical generation = 40 years) of the year c.30 (when Jesus spoke the prophecy).