""... When God created humankind, he made them in the likeness of God. Male and female he created them, and he blessed them and named them “Humankind” when they were created. "
That implies that each human being continues to belong to his/her gender in the life-after-life. Now, there are some who opt to change their gender for various reasons, former wrestler Gabbi Tuft being the latest edition to the list. To what gender do such individuals belong to, in the life to come is a matter of curiosity for all. Will they retain the gender in which they had been born , or will they change over to the newly assumed gender , in the life to come ? My question therefore, is: What are the teachings of Catholic Church on the implications of gender-change by individuals, in their life-after-life ?
"Sex-change operations" are mutilations of the body, changes in the accidents (not substance) of a human. (The soul doesn't have a sex; St. Ambrose On Virginity ch. 15: "anima enim sexum non habet", "for the soul doesn't have a sex".)
The scars of wounds will not be in the saints, nor were they in Christ, in so far as they imply a defect, but as signs of the most steadfast virtue whereby the saints suffered for the sake of justice and faith: so that this will increase their own and others' joy (cf. q. 54 a. 4 ad 3). Hence Augustine says (De Civ. Dei xxii, 19):
We feel an undescribable love for the blessed martyrs so as to desire to see in that kingdom the scars of the wounds in their bodies, which they bore for Christ's name. Perchance indeed we shall see them for this will not make them less comely but more glorious. A certain beauty will shine in them, a beauty though in the body, yet not of the body but of virtue.
Nevertheless those martyrs who have been maimed and deprived of their limbs will not be without those limbs in the resurrection of the dead, for to them it is said (Lk. 21:18): "A hair of your head shall not perish."
∴, the sex of humans with their resurrected bodies will be that in which God created them.
There are verses in the Bible that allow a reading of God as androgynous (i.e. both male and female). Since Genesis 5:12 claims humans are made in the image of God, such a reading renders human gender change void of implications.
Such a reading is not accepted by most denominations, including Catholic authorities, who insist gender change does not change anything in the eyes of the Church. See:
I have kept silent from ages past; I have been quiet and restrained
Myself. But now, I will groan like a woman in labor, gasping
Can a woman forget her nursing child, or lack compassion for the child
of her womb ? Even if these forget, yet I will not forget you.
I will attack them like a bear robbed of her cubs and tear open the
rib cage over their hearts. I will devour them there like a lioness,
like a wild beast that would rip them open.
Did I conceive all these people ? Did I give them birth so You should
tell me, ‘ Carry them at your breast, as a nursing woman carries a
baby,’ to the land that You swore to give their fathers?
You ignored the Rock who gave you birth; you forgot the God who gave
birth to you.
Furthermore, God is described as breastfeeding new believers in several verses:
1 Peter 2-3:
Like newborn babies, crave pure spiritual milk, so that by it you may
grow up in your salvation, now that you have tasted that the Lord is
1 Thess 2:7-8
Instead, we were like young children[a] among you. Just as a nursing
mother cares for her children, so we cared for you. Because we loved
you so much, we were delighted to share with you not only the gospel
of God but our lives as well.
1 Cor 3:1-3
Brothers and sisters, I could not address you as people who live by
the Spirit but as people who are still worldly—mere infants in Christ.
2 I gave you milk, not solid food, for you were not yet ready for it.
Indeed, you are still not ready. 3 You are still worldly. For since
there is jealousy and quarreling among you, are you not worldly? Are
you not acting like mere humans?
In fact, though by this time you ought to be teachers, you need
someone to teach you the elementary truths of God’s word all over
again. You need milk, not solid food! 13 Anyone who lives on milk,
being still an infant, is not acquainted with the teaching about