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Dan 9 concerns Daniel's people (true Israel), not physical unbelieving Israel.
Dan 9:
, 5 we have sinned and committed iniquity, we have done wickedly and rebelled, even by departing from Your precepts and Your judgments. 6 Neither have we heeded Your servants the prophets, who spoke in Your name to our kings and our princes, to our fathers and all the people of the land. 7 O Lord, righteousness belongs to You, but to us shame of face, as it is this day—to the men of Judah, to the inhabitants of Jerusalem and all Israel, those near and those far off in all the countries to which You have driven them, because of the unfaithfulness which they have committed against You.
8 “O Lord, to us belongs shame of face, to our kings, our princes, and our fathers, because we have sinned against You. 9 To the Lord our God belong mercy and forgiveness, though we have rebelled against Him. 10 We have not obeyed the voice of the Lord our God, to walk in His laws, which He set before us by His servants the prophets. 11 Yes, all Israel has transgressed Your law, and has departed so as not to obey Your voice; therefore the curse and the oath written in the Law of Moses the servant of God have been poured out on us, because we have sinned against Him. 12 And He has confirmed His words, which He spoke against us and against our judges who judged us, by bringing upon us a great disaster; for under the whole heaven such has never been done as what has been done to Jerusalem.
This is not spiritual Isreal. This is nation Israel being punished according to the law of moses in Lev 26.
The Lord's holy temple is in his sanctuary, who are His people (true spiritual Israel). My spiritual perspective corroborates the Word.