Matthew 24:1-2

Mat 24:1 And Jesus went out, and departed from the temple: and his disciples came to him for to show him the buildings of the temple.
Mat 24:2 And Jesus said unto them, See ye not all these things? verily I say unto you, There shall not be left here one stone upon another, that shall not be thrown down.

The Temple was completely destroyed. It is believed that it signified that the rejection of the testimony of the Messiah to the Kingdom in grace, as the cause of the judgment that fell upon Jerusalem and its inhabitants. The testimony of the Jew with the Temple is destroyed to make way for the New Covenant established when the Lamb of God came to take away the sins of the world.

Jesus departed from the Temple, never to return... a very solemn act as though in execution of the judgement He pronounced. The hearts of His disciples are still fixed on their life as defined by the Temple and point out to Him the splendour of the buildings of the Temple. He points them in a new direction; predicting that the Temple in all its glory will be utterly destroyed... something that looked impossible to His disciples that day. That Temple was the place where the sacrifices of the Mosaic Law were carried out. Jesus came as Messiah - the perfect and final sacrifice - the One Who fulfilled the Law - the Lamb of God Who takes away the sin of the world. The Temple was no longer needed and was destroyed to point man away from that testimony toward the testimony of Jesus Christ.

There has been some concern expressed that the Western Wall AKA the "Wailing Wall" is still standing .... when Jesus said that not a single stone would remain one on another of the Temple. The Western Wall is not part of the Temple. It had no religious importance at the time but was merely an outer wall. It only took on religious significance once the Temple was completely destroyed.

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People keep knocking the Bible - and then time proves it accurate. I have seen this over and over again. No matter what they say... can't undo what Jesus did in my heart.... really am a new creature in Christ - such a relief! Heavy stuff being the old me

So true.