It is only those of the Body of Christ who are identified as the elect(ion).
Luke 18:7
And shall not God avenge
his own elect, which cry day and night unto him, though he bear long with them?
Romans 8:33
Who shall lay any thing to the charge of
God's elect? It is God that justifieth.
Colossians 3:12
Put on therefore, as the
elect of God, holy and beloved, bowels of mercies, kindness, humbleness of mind, meekness, longsuffering;
2 Timothy 2:10
Therefore I endure all things for the
elect's sakes, that they may also obtain the salvation which is in Christ Jesus with eternal glory.
Romans 11:7
What then? Israel hath not obtained that which he seeketh for; but the
election hath obtained it, and the rest were blinded.
1 Thessalonians 1:4
Knowing,
brethren beloved, your
election of God.
1 Peter 5:13
The
church that is at Babylon,
elected together with you, saluteth you; and so doth Marcus my son.
2 Peter 1:10
Wherefore the rather,
brethren, give diligence to make your calling and
election sure: for if ye do these things, ye shall never fall.
Your first sentence is immediately challenged by the entire Old Testament.
Your following usages of the word elect and election are missing context.
Luke 18 is spoken to the diaspora.
Romans 8-11 literally leads into discussion about Israel vs Gentiles and God’s work with both. Paul says not all Israel is Israel, but he specifically divides “Israel” from Abraham’s Seed, by placing Spiritual rebirth through faith in Jesus as the current Israel in the Physical Israel context, yet he doesn’t once call the Body of Christ, Israel and the elect are again within the Diaspora context.
Colossians 3:11 connects to Paul specifying that there is no Jew or Gentile in the Body of Christ and the word election is used in an Ephesians 1:4 sense, that specifically binds to Christ being elected before the foundation as the Slain Lamb. Even by specifying what Paul specifies, about Jews and Gentiles, it is clear that the Body of Christ is not Israel, though some of Israel has joined the Body of Christ. Paul counts his heritage loss, as he identifies Himself as part of Israel that is “In Christ”.
1 Thessalonians is also the Ephesians 1:4 context because it is to believers, in the opening of the epistle.
1 and 2 Peter are the most specific use of the word Elect and this is actually supporting my initial point as Peter was the emissary to the Jews, while Paul was the emissary to the Gentiles. This is immediately verified here (Galatians 2:8).
Now, about your opening sentence, of your response... if I find one single reference in the Old Testament that binds physical Israel to election, it becomes immediately void.
I specifically worded election in Jesus, Who was elected before the foundation, as the usage we see towards the Body of Christ, but you have suggested that Israel is not Elect by Physical description, while I assure you, Romans 11 is a clue to God’s “irrevocable” promises, and the entire Old Testament verifies the election of Jacob’s descendants.
If you missed that God elected Physical Israel in the OT, I would have to say you managed to overlook quite a bit while reading through it.
Romans 11:25 and Luke 21:24 have an interesting similarity in their phrasing. Jews and Gentiles are given context, despite their currently being no Jew or Gentile in the Body of Christ. Do you see it?