§ The verse states: “And the king removed his ring from his hand” (Esther 3:10). Rabbi Abba bar Kahana said: The removal of Ahasuerus’s ring for the sealing of Haman’s decree was more effective than the forty-eight prophets and the seven prophetesses who prophesied on behalf of the Jewish people. As, they were all unable to return the Jewish people to the right way, but the removal of Ahasuerus’s ring returned them to the right way, since it brought them to repentance.
The Sages taught in a baraita: Forty-eight prophets and seven prophetesses prophesied on behalf of the Jewish people, and they neither subtracted from nor added onto what is written in the Torah, introducing no changes or additions to the mitzvot except for the reading of the Megilla, which they added as an obligation for all future generations.
§ The Gemara asks with regard to the prophetesses recorded in the baraita: Who were the seven prophetesses? The Gemara answers: Sarah, Miriam, Deborah, Hannah, Abigail, Huldah, and Esther. The Gemara offers textual support: Sarah, as it is written: “Haran, the father of Milcah, and the father of Iscah” (Genesis 11:29). And Rabbi Yitzḥak said: Iscah is in fact Sarah. And why was she called Iscah? For she saw [sakhta] by means of divine inspiration, as it is stated: “In all that Sarah has said to you, hearken to her voice” (Genesis 21:12). Alternatively, Sarah was also called Iscah, for all gazed [sokhin] upon her beauty.