1st coming of Jesus, the Savior, was in humiliation – SERVANT (in humility).
2nd coming of Jesus, the King, will be glorious – KING (in glory & majesty).
In theology, the study of the last things to happen to earth is called ESCATHOLOGY… Greek eschatos (last) and logos (study).
Now Jesus Christ is in heaven, seated at the right hand of the Father, as our exalted PROPHET, PRIEST and KING, waiting for the time appointed by the Father to return to earth.
3 Greek words used of this event in the NT:
1. parousia (presence) 1 Thess. 3:13
2. apokalysis (revelation) 2 Thess. 1:7-8
3.epiphaneia (appearance) 2 Thess 2:8; Titus 2:13