Which key verse is associated with Esther's courage and purpose?

Esther 4:14 is the key verse associated with Esther's courage and purpose because it highlights the significance of her role in a critical moment for the Jewish people. In this passage, Mordecai communicates to Esther that she may have risen to her royal position "for such a time as this." This indicates that Esther is uniquely positioned to make a difference and potentially save her people from impending danger. The verse emphasizes her courage, as she must decide whether to approach the king, which could result in severe consequences for her.

This context frames Esther not only as a character of bravery but also as one whose actions are divinely ordained, serving a greater purpose during a time of crisis. Thus, it encapsulates the themes of divine providence and human responsibility central to the book of Esther. The other verses mentioned do not carry the same weight regarding Esther's courage and her understanding of her purpose within the narrative.