Rosh Hashanah is not mentioned in the Torah as a day of judgment. In the Torah Rosh Hashanah is identified as a day of zikaron (remembering) & of shofar.
On Rosh Hashanah we are judged as we are now (like Yishmael). It seems hard to believe that we can just be good for 48 hours and receive a good judgement! At the same time, we say in davening that … Continued