Don't you know what it means when someone answers the question with a question? I often use this rhetorical technique to shift the discussion and highlight a point that disproves your position.
My question comes from the Parable of the Minas, where Jesus says that he is like the nobleman who will go off to a far country to receive a kingdom. His example comes from history, when Herod the Great went to Rome to receive a kingdom from Rome. While he was in Rome, he didn't rule over Judea. He didn't rule over Judea until he arrived back home.
Your question is a loaded question in that it assumes the point you are defending. I took it as a rhetorical question. I have already answered the question based on my exegesis of the Parable. Just like Herod received authority while he was in Rome, Jesus received authority while he was in heaven. And just as Herod began to rule over Judea after he returned, Jesus will rule over the earth when he returns.
You are missing the whole thrust of the parable and teaching. It is all about accepting Christ. Christ came unto His own and they rejected Him, Christ then rejected them. Israel was a privileged people. God had given them a possession illustrated here as a vineyard, which they did not keep.
Christ outlines physical's Israel's rejection. The kingdom has been taken from Israel as a nation and given to another nation – the largely Gentile New Testament Church – comprised of all believers (whether Jew or Gentile). This discourse showed these unbelieving religious Jews that because of their wanton rejection of Himself, Christ would extend His mercy to all nations. The near exclusive favour that natural Israel had formerly enjoyed would now be graciously widened to include the previously darkened Gentile people.
In this parable, the vineyard owner or householder (who represents Almighty God) sends a son (representing Christ). He has numerous workers known as the “husbandmen.” who represent the people of Israel. He also has servants who represent the prophets.
The householder (representing God) goes into a “far country.”
Mat 21:33 Hear another parable: There was a certain householder, which planted a vineyard, and hedged it round about, and digged a winepress in it, and built a tower, and let it out to husbandmen, and went into a far country:
Mat 21:34 And when the time of the fruit drew near, he sent his servants to the husbandmen, that they might receive the fruits of it.
Mat 21:35 And the husbandmen took his servants (the Old Testament prophets), and beat one, and killed another, and stoned another.
Mat 21:36 Again, he sent other servants more than the first (more Old Testament prophets): and they did unto them likewise.
Mat 21:37 But last of all he sent unto them his son (Christ Jesus), saying, They will reverence my son.
Mat 21:38 But when the husbandmen saw the son, they said among themselves, This is the heir; come, let us kill him, and let us seize on his inheritance.
Mat 21:39 And they caught him, and cast him out of the vineyard, and slew him (Calvary).
Mat 21:40 When the lord therefore of the vineyard cometh, what will he do unto those husbandmen?
Mat 21:41 They say unto him, He will miserably destroy those wicked men, and will let out his vineyard unto other husbandmen, which shall render him the fruits in their seasons.
Mat 21:42 Jesus saith unto them, Did ye never read in the scriptures, The stone which the builders rejected, the same is become the head of the corner: this is the Lord's doing, and it is marvellous in our eyes?
Mat 21:43 Therefore say I unto you, The kingdom of God shall be taken from you, and given to a nation bringing forth the fruits thereof.
Mat 21:44 And whosoever shall fall on this stone shall be broken: but on whomsoever it shall fall, it will grind him to powder.
Mat 21:45 And when the chief priests and Pharisees had heard his parables, they perceived that he spake of them.
Mat 21:46 But when they sought to lay hands on him, they feared the multitude, because they took him for a prophet.
There is no hint or inclination in this parable that the vineyard would then be given back to these Christ rejecting husbandmen (representing the old physical economy that was restricted to natural Israel), but that it would be given to the whosoever believeth of all nations, including repentant Jews.
The Lord then turned to the religious Jews in Matthew 21:40-41 and presented a question, asking, “When the lord therefore of the vineyard cometh, what will he do unto those husbandmen?”
To which they replied, “He will miserably destroy those wicked men, and will let out his vineyard unto other husbandmen, which shall render him the fruits in their seasons.”
It is then that the Lord asks them, “Did ye never read in the scriptures, The stone which the builders rejected, the same is become the head of the corner: this is the Lord's doing, and it is marvellous in our eyes? Therefore say I unto you, The kingdom of God shall be taken from you, and given to a nation bringing forth the fruits thereof. And whosoever shall fall on this stone shall be broken: but on whomsoever it shall fall, it will grind him to powder” (Matthew 21:42-44).
In His summing up of His message, Christ predicts, in this vivid parable, the Jews rejection of Himself and His ultimate crucifixion. The kingdom of God has been given to a spiritual nation – the Church – today. This Church would never be based upon or restricted to one nationality, color or geographical location – it would be international and trans-national, incorporating all the peoples of the world.