So then you don't see two gatherings here? One of the "chosen", and one of "nations"?
There are only two kinds of people at the gathering. They are the sheep on Christ's right or the goats on His left. This is inclusive of ALL the nations that have ever existed or ever shall exist upon the face of the earth throughout time. Those on His right hand are blessed of the Lord, and receive the Kingdom prepared from the foundation of the world. Those on His left hand are told "
Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:" When we consider the whole context of Matthew we find those on His right hand are those who in their lifetimes who have done good, and those on His left hand are those who throughout their lifetimes have done evil. When all mankind is gathered before God in judgment we shall be either the righteous on His right hand, or the wicked on His left. There is no other separation between the chosen for eternal life, and the nations who remain in unbelief.
Regarding His coming to the earth itself, I'm curious, If this isn't Jesus in His coming in power and glory, who is it?
Zechariah 14:3-4 KJV
3) Then shall the LORD go forth, and fight against those nations, as when he fought in the day of battle.
4) And his feet shall stand in that day upon the mount of Olives, which is before Jerusalem on the east, and the mount of Olives shall cleave in the midst thereof toward the east and toward the west, and there shall be a very great valley; and half of the mountain shall remove toward the north, and half of it toward the south.
If Jesus doesn't come to earth, where is He when He comes in power and glory?
The prophetic words of Zechariah are either already fulfilled when Christ came to earth a man, and will be finished when Christ returns on the last day of this age when the seventh angel sounds that time given this earth shall be no longer. Why are you still looking for Christ to come to the earth, when Scripture tells us Christ has already come in His day/age/time/era?
Zechariah 14:1-4 (KJV) Behold,
the day of the LORD cometh, and thy spoil shall be divided in the midst of thee. For I will gather all nations against Jerusalem to battle; and the city shall be taken, and the houses rifled, and the women ravished; and half of the city shall go forth into captivity, and the residue of the people shall not be cut off from the city. Then shall the LORD go forth, and fight against those nations, as when he fought in the day of battle. And his feet shall stand in that day upon the mount of Olives, which
is before Jerusalem on the east, and the mount of Olives shall cleave in the midst thereof toward the east and toward the west,
and there shall be a very great valley; and half of the mountain shall remove toward the north, and half of it toward the south.
When Christ came to earth a man, He came in great power. His power is clearly demonstrated through His ability to heal, cast out demons, and resurrect the dead. His power on earth was most clearly seen by His perfect sinless life as a human, His victory over sin by His cross, and His power over Satan and death by His physical resurrection.
His glory too was manifested to the earth, when the angels display the glory of the Lord when our Saviour, which is Christ the Lord was born. The fullness of His glory will be manifested unto the whole earth once again when the seventh angel sounds and Christ comes again.
Luke 2:8-14 (KJV) And there were in the same country shepherds abiding in the field, keeping watch over their flock by night. And, lo, the angel of the Lord came upon them, and
the glory of the Lord shone round about them: and they were sore afraid. And the angel said unto them, Fear not: for,
behold, I bring you good tidings of great joy, which shall be to all people. For unto you is born this day in the city of David a Saviour, which is Christ the Lord. And this
shall be a sign unto you; Ye shall find the babe wrapped in swaddling clothes, lying in a manger. And suddenly
there was with the angel a multitude of the heavenly host praising God, and saying, Glory to God in the highest, and on earth peace, good will toward men.