Is the following in the same context

Relative to the Greek grammar?

for ye did not receive a spirit of bondage again for fear, but ye did receive a spirit of adoption in which we cry, 'Abba -- Father.'
And not only so, but also we ourselves, having the first-fruit of the Spirit, we also ourselves in ourselves do groan, adoption expecting -- the redemption of our body; Rom 8:15,23

See ye what love the Father hath given to us, that children of God we may be called; because of this the world doth not know us, because it did not know Him; beloved, now, children of God are we, and it was not yet manifested what we shall be, and we have known that if he may be manifested, like him we shall be, because we shall see him as he is; 1 John 3:1,2

Does the same scenario apply in the physical, say for one in their sixth month of pregnancy? The child she is carrying is the child of the father but it is not yet manifested what it shall be.

3:6 τὸ γεγεννημένον ἐκ τῆς σαρκὸς σάρξ ἐστιν καὶ τὸ γεγεννημένον ἐκ τοῦ πνεύματος πνεῦμά ἐστιν

 

Is not the following speaking of the same thing?

1 Peter 1:3-5 YLT Blessed is the God and Father of our Lord Jesus Christ, who, according to the abundance of His kindness did beget us again to a living hope, <Rom 8:24,25) through the rising again of Jesus Christ out of the dead, to an inheritance <Redemption of the body) incorruptible, and undefiled, and unfading, < How so, is it not because of being born of the Spirit?) reserved in the heavens for you, who, in the power of God are being guarded, through faith, unto salvation, ready to be revealed in the last time,

to an inheritance <Redemption of the body) incorruptible, and undefiled, and unfading

Does that begin by being indwelled with the Spirit of adoption and becomes fulfilled at the appearing of the Lord, by being raised and or changed, from the soul of the flesh being in the blood, to the soul of the flesh being in Spirit? The adoption to wit?

And He who did work us to this self-same thing is God, who also did give to us the earnest of the Spirit; 2 Cor 5:5
in whom ye also, having heard the word of the truth -- the good news of your salvation -- in whom also having believed, ye were sealed with the Holy Spirit of the promise, which is an earnest of our inheritance, to the redemption of the acquired possession, to the praise of His glory. Eph 1:13,14

Is not John 3:1-8 saying the same? Is not the kingdom in John the very Kingdom of 1 Cor 15:50? Is to be born from above inclusive of the Spirit of Adoption and also the Adoption, relative to the man (anthrōpos) born of woman, come in the water and the blood? 1 John 5:6 and 1 John 4:2,3 Rom 1:3,4