Excellent insights my dear!
I would add these confirmations from Paul:
1 Timothy 3:16 And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.
Romans 1:8 First, I thank my God through Jesus Christ for you all, that your faith is spoken of throughout the whole world.
Colossians 1:5-6 For the hope which is laid up for you in heaven, whereof ye heard before in the word of the truth of the gospel; 6 Which is come unto you, as it is in all the world; and bringeth forth fruit, as it doth also in you, since the day ye heard of it, and knew the grace of God in truth:
Colossians 1:23 If ye continue in the faith grounded and settled, and be not moved away from the hope of the gospel, which ye have heard, and which was preached to every creature which is under heaven; whereof I Paul am made a minister;
The "Great Commission" was fulfilled in the first century before the end of that age (aion) was completed with the utter destruction of the Temple which was outward sign of God's first Covenant.
Of course, this does not mean that people no longer need to fulfill the command to preach the Gospel! But when we preach the Gospel now, it is not in the first century context in which the Gospel was then for the first time going forth unto the Gentiles as the Kingdom was transfered from the Jews to the Christians.
Matthew 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.
This is the same "Kingdom of God" in which we Christians now live. It is the same as the "Kingdom of Heaven" that was preached as the mystery to be received by the Elect:
Matthew 13:11 He answered and said unto them, Because it is given unto you to know the mysteries of the kingdom of heaven, but to them it is not given.
And it is the same Kingdom that is revealed by the Holy Spirit in believers:
John 3:5 Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
This is indeed the Kingdom that Christ brought to earth. This is the essence of the "Gospel of the Kingdom."
Richard
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