The answer is: She had looked after Naomi

Ruth 2:10-11

Boaz's decision to allow Ruth to glean in his field is rooted in the great respect and admiration he had for her character and actions. When Boaz first encounters Ruth, he is already aware of her story—the way she selflessly cared for her mother-in-law Naomi after the loss of their husbands. This isn't just a noble act; it indicates profound loyalty and strength of spirit, explaining why Boaz expresses heartfelt gratitude.

What's fascinating here is that gleaning in the fields was rooted in a Jewish law meant to care for the poor and vulnerable. Deuteronomy 24:19 provides insight into the practices that require landowners to leave the edges of their fields unharvested so that the needy can collect food. In Ruth's case, Boaz's willingness goes beyond mere obligation; it reveals kindness and generosity. Additionally, throughout the book, Boaz's character echoes the theme of redemption, representing grace and protection.

It's intriguing to know that Boaz's name could imply "strength," a trait he certainly displays not only through his physical support of Ruth, but also in his moral compass as he navigates the customs of his time. Ultimately, the relationship between Ruth and Boaz culminates in an incredible speranza, as their union not only changes their personal lives but also impacts the entire lineage leading to King David, and eventually, to something far greater. Their story calls readers to inspire others with kindness and integrity in their own lives today.