OPC'n
Puritan Board Doctor
In my version it would be on page 122. Better to search for: 2. Adam's Sin, or Question 15 (Question 15: What was the sin whereby our first parents fell from the estate wherein they were created?) in the version of your book, or see:
https://www.ccel.org/ccel/watson/divinity.vii.ii.html
That's very interesting I've never heard of anyone with that doctrine. This book is my mom's which I obviously have never read. I have to say I whole heartily disagree with him. Here's why:
"And God saw everything that he had made, and behold, it was very good. And there was evening and there was morning, the sixth day."
"And on the seventh day God finished his work that he had done, and he rested on the seventh day from all his work that he had done. 3 So God blessed the seventh day and made it holy, because on it God rested from all his work that he had done in creation."
1. Like the other five days, God declares everything he had made on the sixth day was very good.
2. Like the other five days he encapsulates the whole day as being very good by stating its beginning time and its end time.
There is nothing in this text to allude to the fall before God finished the creational week. Then you have the seventh day. What is the seventh day? What did it mean for the Jews and for us? It is the Sabbath Command. The Sabbath day is, of course, a creational ordinance. Creational ordinances are pre-fall not post-fall.