Calvin continues talking about the knowledge of God the Creator but chapter 5 introduces that knowledge found in the created order rather than naturally implanted in man.

Here is the CCEL link to read Calvin's institutes for free:

https://ccel.org/ccel/calvin/institutes/institutes.i.html

The edition by McNeil and Battles:

https://www.amazon.com/dp/0664220282?ref=ppx_yo2ov_dt_b_fed_asin_title