Now, please answer the question. Who are the children of the kingdom? And what does that term mean?
Are the children of the kingdom the same people in both verses?
Look, I know well you and your "books learned" yours are used to what you refer to as "straight answers.
That's where you put out a straight answer not based in anything but your tradition that you then go back and forth; each putting forth your own reasoning against the other's.
Sorry, but that is not our school. That is yours. The reasoning of men reasoning about this and that against another's reasoning.
You want my answer - here it is. All you need do is search - not your endless books daily - but the Scriptures. And then, exercise plain old common sense and believe the Scriptures over your endless books.
To answer your question based on the Scripture - "the children of the kingdom" are one of these two groups being addressed by one of their own "brethren" in the following. It depends on their volition, on their end, and God's oath in Himself to their fathers on His end.
Acts 3:
17. And now,
brethren, I wot that through ignorance
ye did it, as did also your rulers.
18. But those things, which God before had shewed by the mouth of all his prophets, that Christ should suffer, he hath so fulfilled.
19.
Repent ye therefore, and be converted, that
your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord.
20. And he shall send Jesus Christ, which before was preached unto
you:
21. Whom the heaven must receive until the times of restitution of all things, which God hath spoken by the mouth of all his holy prophets since the world began.
22. For Moses truly said unto the fathers, A prophet shall the Lord
your God raise up unto
you of
your brethren,
like unto me; him shall
ye hear in all things whatsoever he shall say unto
you.
23. And it shall come to pass, that every soul, which will not hear that prophet, shall be destroyed
from among the people.
24. Yea, and all the prophets from Samuel and those that follow after, as many as have spoken, have likewise foretold of these days.
25.
Ye are the children of the prophets, and of the covenant which God made with
our fathers, saying unto Abraham, And in
thy seed shall all the kindreds of the earth be blessed.
26. Unto
you first God, having raised up his Son Jesus, sent him to bless you, in turning away
every one of you from his iniquities.
This is real simple...
"Are you with the program here, or are you against it; and thus, against yourselves" is what the Spirit is challenging
all of them to.
Those with the program, remain the children of the kingdom, as Jacob was. Those who reject it, lose their access to it, as Esau had by his own volition.
That, towards Israel's prophesied destiny as an agency of God over the Earth - the issue of election unto service, Isaiah 41:8, Isaiah 44:1-2.
That is; as His witness among the Gentiles, Isaiah 43:10, thus, the actual sense of Acts 1: 7-8.
Matthew 8:
11. And I say unto you, That many shall come from the east and west, and shall sit down with Abraham, and Isaac, and Jacob, in the kingdom of heaven.
12. But the children of the kingdom shall be cast out into outer darkness: there shall be weeping and gnashing of teeth.
If that still does not meet what your endless books parrot, well, you can't be helped; your books take the priority over the Scripture no matter how much you and yours swear up and down the street otherwise.
What say you as to who these children supposedly are? Or are you just baiting?
Time you put up, or shut up, Aaron.
And while you're at it; smile; if you have believed Romans 5:8; you're in the fellowship of the mystery no matter how clueless you continue to choose to remain about it.
To that much, I say a hearty "Amen!"
I'd add "Come on in; the water's fine," but there is only "one baptism" today, and its not water, lol