It simply says... unless one is born again, he cannot see the kingdom of God. ...unless one is born of water and the Spirit, he cannot enter the kingdom of God.
Why are you saying one thing, and putting a scripture next to it which says something else?
Please find one scripture in the Bible that actually says " born again (regenertaed) into
spiritual eternal life".
I've not seen one.
Nor does anyone else.
John 3:16 and Hebrews 5:9 both make clear that having eternal life is dependent on continuous obedience, and not obeying today and not tomorrow.
These scriptures are in harmony with the three I referenced previously.
Hebrews 10:38;
2 Peter 2:17-22; Matthew 24:13
If Romans 1:17 and Ephesians 2:8 are both false, then I didn't understand.
However, those scriptures plainly say, “The righteous will live by faith.”, and "For by grace you are saved through faith.".
Since both these scriptures are true, then I do know that what is required to be saved, is faith. Not being born again, as you asserted.
Jesus did not say one needs to be born again, to be saved.
A well known scripture... John 3:16 expresses this in simple words, but most people do not understand the purpose of the kingdom, and so they do not understand Jesus' words in John 3:3-8.
Unfortunately, they think they know, and don't need to know, they having expert knowledge... even when it is shown they don't know.
For example, some people do not know that no one was anointed by holy spirit prior to Jesus' anointing, and 33 C.E., but it doesn't humble them to say they need an understanding, when it becomes clear they lack it.
Only once.
No one is denying it, so I'm not sure why you are asking.
Romans 8:14-17 reads...
14 For as many as are led by the Spirit of God, these are sons of God.
15 For you did not receive the spirit of bondage again to fear, but
you received the Spirit of adoption by whom we cry out, “Abba,[e] Father.” 16 The Spirit Himself bears witness with our spirit that we are children of God, 17 and if children, then heirs - heirs of God and joint heirs with Christ, if indeed we suffer with Him, that we may also be glorified together.
They are children of God, but, more importantly,
adopted sons, and
heirs - heirs of God and joint heirs with Christ. (Romans 8:23; Ephesians 1:5)
That most significant purpose is what allows God's children to be freed from bondage to sin and death Romans 8:21, and enjoy everlasting blessings. Genesis 22:18; Galatians 3:15-18
This is why they are a priesthood. Hebrews 4:14-5:3; Revelation 1:6; Revelation 5:9, 10; 1 Peter 2:4-10
However, to discuss this, we need a new thread.