Going through Noach with the help of Rashi, there are 3 different systems of counting months.
- From (Tishrei|Nisan) 1 2 3
- From (Kisleiv|Sivan) when the rain stopped
- From (Cheshvan|Iyar) when the rain started
Why does the Torah use three different systems of counting within a single narrative? And why does it use each one in those particular places?