Cosmas Indicopleustes

This is the book of the generation of mankind. In the day that God created Adam, in the likeness of God made he him; male and female created he them. And he blessed them and called his name Adam in the day when he created them. And Adam lived 230 years and begat a son in his likeness and after his image, and called his name Sêth. In this place likewise he called his name Sêth, as being the foundation of the human race, and as bearing his own characteristics and the proper dignities.

The Christian Topography, Book 5 ↗

Augustine of Hippo

The reason for this break in the narrative [in the description of the genealogies to the flood] was, I take it, that the writer, as though bidden by God, was unwilling to have the beginning of world chronology reckoned from the earthly city (that is, from the generation of Cain), and so he deliberately went back to Adam for a new beginning. …

City of God 15.21 ↗

Bede

This is the book of the generation of Adam. In the day when God created man, He made him in the likeness of God: He created them male and female, and He blessed them. This is the book of the first creation of man, which God made in His likeness, that he might be perpetually good, immortal, and happy by participation in His goodness. God created them male and female and blessed them with the grace of His blessing. Such was the generation of Adam with his wife on the day he was created. But alas! how grievous! …

Commentary on Genesis (Hexaemeron) ↗