Biblewriter, it appears that much of what you believe is some sort of wishful thinking (for whatever reason). For example, you included:
“Then I will give them a heart to know Me, that I am the LORD; and they shall be My people, and I will be their God, for they shall return to Me with their whole heart.” (Jeremiah 24:7) “And so all Israel will be saved” (Romans 11:26)
That is quite the stretch to link those two verses. First, the theme of the prophecy was a phase of the carrying away of Judah into Babylon. And the verse you supplied, Jer 24:7, was simply the Lord promising them they would return. But, as you are aware, in many other places it is prophesied that the return was conditional: only a small remnant returned ("very small" in two verses).
But this is another part of that verse dispensationalist's tend to severely misinterpret:
"… they shall return to Me with their whole heart".
Well, did they? Did they return to the Lord with their whole heart? The answer is a resounding, No! Nor did they ever!
Here you reveal the basic weakness of your entire system of interpretation. For even while you are insisting that the prophecy is about events that have already taken place, you admit that it has never been fulfilled.
God does not express "wistful speaking." He sometimes gives specific instructions which, even as He gives them, He knows we will not obey Him. At other times, He states future events with precision. And when He does this, the precision is absolute. An example of this is Daniel 11, from verse 2 to the middle of verse 35. This section speaks of events which began long after the prophecy was made, and continued over the course of numerous generations. But it is so precisely accurate that unbelievers insist that its very accuracy proves that it could not have been written before the prophesied events took place.
The prophecy given in Jeremiah 24:7 is not an instruction. It is a statement of a coming event that God has flatly said will take place. And you yourself admit that it has never taken place. So we have to conclude that one of three statements about Jeremiah 24:7. Either:
1. God never said these words.
2. God said something would happen and it will not ever happen.
or:
3. These words will be fulfilled in the future.
Choices 1 and 2 are simply not available to a godly Christian. Both of these choices completely discredit a person as a Christian teacher. So we are forced to conclude that these words apply to a time that is still in the future.
And it turns out that Jeremiah 24:7 is not the only place where God said that such a time would come. He actually said it in other places as well. One of these places is Zechariah 12:10-14, which expressly says that all the families that remain will repent with bitter weeping and when does it say they will do this? When "they will look on me whom they have pierced." That is, after He has returned, even as explicitly stated in Acts 1:11 and in Zechariah 14:4.
Likewise, nothing even remotely resembling Ezekiel 20:33-38 has ever happened. so we are again confronted with the same three choices that we were faced with concerning Jeremiah 24:7.
The words in question in that passage are:
33 "
As I live," says the Lord GOD, "surely with a mighty hand, with an outstretched arm, and with fury poured out, I will rule over you.
34 I will bring you out from the peoples and gather you out of the countries where you are scattered, with a mighty hand, with an outstretched arm, and with fury poured out.
35 And I will bring you into the wilderness of the peoples, and there I will plead My case with you face to face.
36 Just as I pleaded My case with your fathers in the wilderness of the land of Egypt, so I will plead My case with you," says the Lord GOD.
37 "I will make you pass under the rod, and I will bring you into the bond of the covenant;
38 I will purge the rebels from among you, and those who transgress against Me; I will bring them out of the country where they dwell, but they shall not enter the land of Israel. Then you will know that I
am the LORD.
Ezekiel 20:33-38
These choices are not "dispensationalist nonsense." They are the only three choices available to a serious student of scripture. And the only godly one is the third choice.