Born again is not what Christ spoke and taught. Christ spoke/taught born from above... at the conception each soul is born from above, and each soul at the death of the flesh, return to the Maker that sent them. Not all souls created take this flesh journey. Taking this flesh journey is the first requirement to see the kingdom of God..
Many are called, few are chosen... The elect were chosen before Genesis 1:2. The foundation of the world as was translated from the Greek word katabolle.
Nicodemus *said to Him, How can a man be born when he is old? He cannot enter a second time into his mothers womb and be born, can he? Jesus answered, Truly, truly, I say to you, unless one is born of water and the Spirit he cannot enter into the kingdom of God. That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. Do not be amazed that I said to you, You must be born again. The wind blows where it wishes and you hear the sound of it, but do not know where it comes from and where it is going; so is everyone who is born of the Spirit.