The "temple" has been physically destroyed twice already. The first time by the Babylonians. The second by the Romans. It is said that there will be a third destruction of the "temple" which could mean the destroying of this world as we know it. False religions, Fake preachers, sinful people proposing to lead the sheep. It is hard to say when and how this will happen. But there is a lot of evil out there. We have to really stay in the body of Christ and true to his teachings. Because according to the Gospel it is he who returns at the end. Matthew 24:5 Many will come in my name, claiming that "I am the Messiah" They will deceive many. Revelation 19:12 describes Jesus return during end times. His eyes are like blazing fire, and on his head are many crowns. He has a name written on him that no one knows but he himself.