וַתִּשְׁכַּ֤ב מרגלתו [מַרְגְּלוֹתָיוֹ֙] עַד־הַבֹּ֔קֶר וַתָּ֕קָם בטרום [בְּטֶ֛רֶם] יַכִּ֥יר אִ֖ישׁ אֶת־רֵעֵ֑הוּ וַיֹּ֙אמֶר֙ אַל־יִוָּדַ֔ע כִּי־בָ֥אָה הָאִשָּׁ֖ה הַגֹּֽרֶן׃
איז זי געלעגן בײַ אים צו פֿוסן ביז באַגינען, און זי איז אױפֿגעשטאַנען אײדער אײנער האָט געקענט דערקענען דעם אַנדערן; װאָרום ער האָט געזאָגט: עס זאָל ניט דערװוּסט װערן אַז די פֿרױ איז געקומען אין שײַער.
Rashi
For he said, “It must not be known.” This refers back to “and she arose before one could recognize [another].” He hurried her to rise because he said in his heart, “It does not befit my honor that it should be known that the woman came to the threshing floor.”19According to the Alshich, Bo’az was concerned with Rus’ reputation rather than his own, because his righteousness was well known and nobody would suspect him of acting immorally.