...Back to the OP, I agree with Bro Joseph. It is most likely that the passage in Jn 3 is referencing Ezekiel...
I do too, but in no way does that preclude Jn 3:8 from being a statement of fact for individuals through all ages. A distinction must be drawn between the individual and the corporate here. As I pointed out, Ezek 36 is addressing the corporate, i.e., the house of Israel, My people Israel. All individuals within this corporate ‘house of Israel’ have the heavenly Jerusalem as their mother. They’re real Jews, Jews inwardly.
25 And I will sprinkle clean water upon you, and ye shall be clean:
from all your filthiness, and from all your idols, will I cleanse you.
26 A new heart also will I give you, and a new spirit will I put within you; and I will take away the stony heart out of your flesh, and I will give you a heart of flesh.
27 And
I will put my Spirit within you, and cause you to walk in my statutes, and ye shall keep mine ordinances, and do them.
28 And
ye shall dwell in the land that I gave to your fathers; and ye shall be my people, and I will be your God.
29 And
I will save you from all your uncleannesses: and I will call for the grain, and will multiply it, and lay no famine upon you. Ezek 36
Notice what they’re being ‘saved’ or delivered from here, their vain manner of life. That’s what belief and obedience to the gospel saves us from.
25 Husbands, love your wives, even as Christ also loved
the church, and gave himself up for it;
26 that he might sanctify it,
having cleansed it by the washing of water with the word,
27 that he might present the church to himself a glorious church, not having spot or wrinkle or any such thing; but that it should be holy and without blemish. Eph 5
Again, this is corporate (the church), and the preaching of the gospel cleanses it.
3 For
we also once
were foolish, disobedient, deceived, serving divers lusts and pleasures, living in malice and envy, hateful, hating one another.
4 But when the kindness of God our Saviour, and his love toward man, appeared,
5 not by works done in righteousness, which we did ourselves, but according to his mercy
he saved us, through the washing of regeneration and renewing of the Holy Spirit,
6 which he poured out upon
us richly, through Jesus Christ our Saviour; Titus 3
Again, the corporate is being saved from their former vain manner of life by this washing of regeneration, the regeneration being the same as:
28 And Jesus said unto them, Verily I say unto you, that ye who have followed me, in
the regeneration when the Son of man shall sit on the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel. Mt 19
…and the same as:
14 Symeon hath rehearsed how first God visited the Gentiles, to take out of them a people for his name.
15 And to this agree the words of the prophets; as it is written,
16 After these things
I will return, And
I will build again the tabernacle of David, which is fallen; And
I will build again the ruins thereof, And
I will set it up:
17 That the residue of men may seek after the Lord, And all the Gentiles, upon whom my name is called,
18 Saith the Lord, who maketh these things known from of old. Acts 15
I think the 1 Peter support for Jesus' use of "born of water" being the gospel message is flawed.
Not necessarily, not if you view it corporately:
14 as
children of obedience,
not fashioning yourselves according to your former lusts in the time of your ignorance:
15 but like as he who called you is holy, be ye yourselves also holy in all manner of living;
16 because it is written, Ye shall be holy; for I am holy.
17 And if ye call on him as Father, who without respect of persons judgeth according to each man`s work, pass the time of your sojourning in fear:
18 knowing that
ye were redeemed, not with corruptible things, with silver or gold,
from your vain manner of life handed down from your fathers;
19 but with precious blood, as of a lamb without spot, even the blood of Christ:
20 who was foreknown indeed before the foundation of the world, but was manifested at the end of times for your sake,
21 who through him are believers in God, that raised him from the dead, and gave him glory; so that your faith and hope might be in God.
22 Seeing ye have purified your souls in your obedience to the truth unto unfeigned love of the brethren, love one another from the heart fervently:
23 having been
begotten again, not of corruptible seed, but of incorruptible,
through the word of God, which liveth and abideth. 1 Pet 1
They, the church, the house of Israel, the house of David, were begotten again, built again, regenerated, delivered from their former ways, by the preaching of the gospel. But you are correct that it is not in reference to the individual’s heavenly birth.