Parousia
There are many interpretation's on this verse Matthew 10:23 it's a good place to formulate your eschatology theology the verse ref. is to Dan 7:13,14 I saw in the night-visions, and, behold, there came with the clouds of heaven one like unto a son of man, and he came even to the ancient of days, and they brought him near before him. 14 And there was given him dominion, and glory, and a kingdom, that all the people's, nations, and languages should serve him: his dominion is an everlasting dominion, which shall not pass away, and his kingdom that which shall not be destroyed. This coming of the Son of Man is His heavenly enthronement, And to him was given dominion (Da 7:14) the word Erchomai, used for coming in Daniel and the New Testament is not the same coming used in Parousia, that only is used four times in Matthew all in ch.24