When Ruth expresses astonishment at the kindness shown to her as a foreigner, Boaz offers a public response to clarify his intentions. He ensures that she and all those watching understand that his special treatment does not stem from improper motives or random affection, but rather from a deep appreciation for her exceptional interpersonal kindness and sincere spiritual devotion [אלשיך, אגרת שמואל]. He emphasizes that he has heard detailed, repeated accounts of her actions, and that her good deeds are widely recognized both in the privacy of her home and out in public [אלשיך, תורה תמימה]. The first major quality he praises is her continued devotion to her mother-in-law after her husband's passing. This is an immense achievement, as relationships between a daughter-in-law and a mother-in-law can often be tense, particularly after the husband dies. Her ongoing support for Naomi proves that her kindness is entirely genuine and was not merely an act to please her husband while he was alive [מלבי״ם, אלשיך, תורה תמימה].
The second quality Boaz highlights is the profound spiritual journey she undertook to join the community. By leaving her parents and her homeland, Ruth surrendered her familial and financial security, stepping completely out of her comfort zone instead of simply relocating within Moab [אלשיך]. On a deeper spiritual level, leaving her parents symbolizes a complete break from Moabite idolatry, a culture that referred to idols of wood and stone as father and mother [תורה תמימה, צאינה וראינה, אשכול הכופר]. In this sense, her actions mirror the legacy of Abraham, who also abandoned his birthplace in pursuit of true faith [אשכול הכופר].
Furthermore, her decision to join an unfamiliar nation highlights the absolute purity of her intentions. She did not attach herself to a wealthy or powerful empire for personal gain, but rather chose an oppressed people, accepting a life where she had to rely on charity to survive. This demonstrates that her conversion was entirely for the sake of heaven [מלבי״ם, אלשיך, אשכול הכופר]. Finally, Boaz references the recent timing of her arrival, hinting at a newly established legal ruling that permitted Moabite women to marry into the Israelites, while the men remained forbidden. He shares this to comfort her and offer hope that her life will not be as difficult as that of other converts, but it also reveals the ultimate depth of her righteousness. She had embarked on this journey without any knowledge of this new ruling, ready to sacrifice everything with no guarantee that she would even be accepted, proving she possesses a completely pure heart [תורה תמימה, צאינה וראינה, אגרת שמואל].