Second Coming
The Second Coming (sometimes called the Second Advent or the Parousia) is a Christian and Islamic belief regarding the future (or past) return of Jesus Christ after his ascension to heaven about two thousand years ago. The idea is based on messianic prophecies and is part of most Christian eschatologies.
Bible prophecy
Preterist scholars explain this verse as referring to the destruction of the Jerusalem temple in 70 AD with the phrase "before the Son of Man comes" meaning before judgment comes upon the nation of Israel and the city of Jerusalem for rejecting Jesus Christ as The Messiah. They reject to refer Matthew 10:23 to the second coming of Jesus because Jesus speaks to his disciples about the towns of Israel: