They were born again at the Cross...
They were not. They... like you and I... had been born again of the Spirit. For them long before, during their lifetime, and for us long after, in ours. In Ephesians 2:4-10, Paul is referring directly to what the prophet Ezekiel had said long before, even long before Jesus was born of Mary:
"And I will give them one heart, and a new spirit I will put within them. I will remove the heart of stone from their flesh and give them a heart of flesh, that they may walk in My statutes and keep My rules and obey them. And they shall be My people, and I will be their God" (Ezekiel 11:19-20).
"I will sprinkle clean water on you, and you shall be clean from all your uncleannesses, and from all your idols I will cleanse you. And I will give you a new heart, and a new spirit I will put within you. And I will remove the heart of stone from your flesh and give you a heart of flesh. And I will put My Spirit within you, and cause you to walk in My statutes and be careful to obey My rules. You shall dwell in the land that I gave to your fathers, and you shall be My people, and I will be your God. And I will deliver you from all your uncleannesses" (Ezekiel 36:25-28).
So you see, unmistakably, people in the Old Testament who were saved were saved exactly people are today; they were born again of the Spirit and raised in Christ through faith by the grace of God.
...the second birth was not necessary for natural branches.
It was and is. Not only was Nicodemus a Jew, he was the teacher of the Jews, and Jesus told him that without exception, no one can see/enter the Kingdom of God without having been born again.
Natural branches were cut off in unbelief, because of a lack of faith.
Right, but they can be grafted back in again, as Paul says in Romans 11, if they are born again of the Spirit and given faith.
We are not natural branches but wild, thus the need to be born again, grafted in.
Sure, and... see above... many of the natural branches broken off will be regrafted in. This is the partial hardening that is now on Israel and will be removed by the end of the age.
...no distinction between Israel and the church, as both need the second birth equally.
Absolutely.
If Nicodemus was confused by the second birth when Jesus presented that fact to him...
Not sure what you mean by "if"... LOL!
...how can you say they already had the second birth?
That Nicodemus didn't understand it shouldn't be understood that it is was not and is not a reality, Timtofly. And we see Paul telling Gentile believers in Ephesus that they
have been born again and thus saved by the grace of God. He's writing to live people in his days ~ and also by extension to you and me ~ and speaking in the past tense, not the future, as is their being born again is some distant future event.
Being removed from death and made alive at the Cross proves they had the second birth giving them eternal life, and now in heaven also have the first resurrection...
There is a certain
sense in which you're correct, here, Timtofly, but your true sense of these things is quite off. They were made alive because of what Jesus did on the cross and through faith, which is the gift of God. And thus, like Abraham so long ago, we believe God, and it is credited to us as righteousness. Those in heaven now, yes, initially shared and still now share in the first resurrection, having been raised up ~ at the a point in their lifetime, just like us ~ with Christ and seated with Christ in the heavenly places in Christ. And now they are destined to share in the second resurrection at the end of the age, which is physical, to eternal life rather than to judgment, which will be the fate of unbelievers. Everyone is destined for the second resurrection, Timtofly, but the outcome ~ what each is resurrected to ~ differs (some to eternal life, the others to judgment), and the final Judgment will bear that out.
...to physically enjoy Paradise, and serve God day and night in that heavenly temple.
One day we all will, but not yet. And the true temple is not a building. :)
They are already there, not waiting to get there from somewhere else.
LOL!!! Well, I agree... LOL!
Paul states God brings them with Him at the Second Coming. God does not leave heaven go someplace, gathers some from that third place, and then comes to the earth.
Yes, but... and this is getting back to the original subject of this thread... Jesus does not come back secretly and take his church back to heaven and then come back again at some later time, as premillennial believers somehow understand it... :)
Which means all the redeemed have also risen from the dead.
Well, right, in the sense that we are
no longer dead in our sin and
have been born again of the Spirit and
raised up in Christ.... by the grace of God through faith, and this not of our own doing but the gift of God, that no one may boast.
But not so much... LOL! ...in the quite ridiculous sense that we have been physically resurrected after having been physically dead. LOL! :)
No one is still waiting in a tomb...
Well, I agree, but their bodies are in tombs/graves/what-have-you... LOL!
The first resurrection, physical, applies to all in Christ,
Spiritual ~ of the Spirit. We have been born again and subsequently
raised up in Christ. This is the "first resurrection" of Revelation 20:4-6.
...the same as the first resurrection applied to the physical body of Jesus.
Our "second resurrection" will be just like His only resurrection was.
If Jesus has a physical body, so do they.
They certainly will. :) Everybody will, actually. But some will be just like Jesus, having been resurrected to eternal life, and will be physically with Him forever in the New Heaven and New Earth.
Grace and peace to you, Timtofly.