Genesis 5:7 (BSB)

And after he had become the father of Enosh, Seth lived 807 years and had other sons and daughters.

From Genesis 5. Also in the ESV.

Commentary on Genesis 5:7

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Genesis 5:6-20: We have here all that the Holy Ghost thought fit to leave upon record concerning five of the patriarchs before the flood, Seth, Enos, Cainan, Mahalaleel, and Jared. There is nothing observable concerning any of these particularly, though we have reason to think they were men of eminence, both for prudence and piety, in their day: but in general, I. Observe how largely and expressly their generations are recorded.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Genesis 5:7: And all the days of Seth were nine hundred and twelve years, and he died. As his father Adam before him. Seth, according to Josephus (l), was a very good man, and brought up his children well, who trod in his steps, and who studied the nature of the heavenly bodies; and that the knowledge of these things they had acquired might not be lost...
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on Genesis 5:3-32: Gen 5:3-32 As Adam was created in the image of God, so did he beget “in his own likeness, after his image;” that is to say, he transmitted the image of God in which he was created, not in the purity in which it came direct from God, but in the form given to it by his own self-determination, modified and corrupted by sin.