He was fully human, not a newly created zygote (despite the ancient/revived error that he was not genetically related to Mary). [1]
Literal, genetic son of Mary – she was not a “surrogate mother” or a borrowed womb, but the true mother.
Son of Mary, thus, Son of David.
Thus, Son of Judah.
Thus, Son of Abraham and Sarah.
Thus, the Woman Eve’s offspring, who would crush Satan’s head.
He was male.
His brothers, sisters, mother, cousins on his mother’s side would have born him a family resemblance.
As a kid, he had friends and played.
He had/did not have lactose intolerance.
He had/did not have some allergy.
He had one skin tone and not another.
He did/did not have freckles.
He learned, from instruction and from experience.
He told stories.
He had a certain hair color and not another. A certain eye color and not another.
He got his hair and beard trimmed in this way and not another.
He was a certain height, not taller or shorter.

His brain had specialized functions.
He spoke Aramaic in the Galilean dialect.
He had – and used – tear ducts.
If he banged a thumb while working, it HURT!
He had all characteristics that a human has; and the fact that we are made in God’s image, it accounts for the overlap.
He had human body language and facial expressions.
So far as we know, he laughed.
He could catch cold.
He got hungry, thirsty, tired, sleepy.
Sleep refreshed him.
(Maybe!) He had a favorite meal, and maybe Mary sometimes made it for him as a treat.
As a man he became able to die.
He died.
He rose again.
As God and man he redeemed humans – not just their “souls” but in every aspect of their being.
NOTES:
[1] The Sociedad Bíblica Iberoamericana, producer of the Biblia Textual in Spanish, not only teaches this ancient heresy; it demands that all its members adhere to it and de facto, reject the true humanity of Christ: “Members affirm – God made Flesh: the Divine Zygote placed by the Holy Spirit in the womb of the virgin Mary, from whom he was born; and they reject as heretical the Westminster Declaration, which declares that Jesus was born of the essence of Mary. (“Dios hecho Carne: Cigoto Divino colocado por el Espíritu Santo en el vientre de la virgen María, de la cual nació; y rechazan por herética la declaración de Westminster, donde se declara que Jesús nació de la esencia de María.” https://labiblia.org/sbia/declaracion/?fbclid=IwAR3vbGwyrsoKWzVakVb4lfSJsdGhZA5XxkJT2vcK3HbdifYCfBZNtpouypo). They then commit a fundamental error of theology, history and logic and say that if Mary was truly Jesus’ mother, then she must have been Immaculately Conceived.
[2] For the classic treatment of these theme, read the 4th century work by Athanasius, “On the Incarnation of the Word.” https://ccel.org/ccel/athanasius/incarnation
“Jesus Christ. Fully God, yes. And vitally, fully human.” By Gary S. Shogren, PhD in New Testament Exegesis, Seminario ESEPA, San José, Costa Rica
What do you think?