וַתִּשְׁכַּ֤ב מרגלתו [מַרְגְּלוֹתָיוֹ֙] עַד־הַבֹּ֔קֶר וַתָּ֕קָם בטרום [בְּטֶ֛רֶם] יַכִּ֥יר אִ֖ישׁ אֶת־רֵעֵ֑הוּ וַיֹּ֙אמֶר֙ אַל־יִוָּדַ֔ע כִּי־בָ֥אָה הָאִשָּׁ֖ה הַגֹּֽרֶן׃
룻이 새벽까지 그 발치에 누웠다가 사람이 피차 알아보기 어려울 때에 일어났으니 보아스의 말에 여인이 타작 마당에 들어온 것을 사람이 알지 못하여야 할 것이라 하였음이라
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.