וּבְכָל־י֣וֹם וָי֔וֹם מָרְדֳּכַי֙ מִתְהַלֵּ֔ךְ לִפְנֵ֖י חֲצַ֣ר בֵּית־הַנָּשִׁ֑ים לָדַ֙עַת֙ אֶת־שְׁל֣וֹם אֶסְתֵּ֔ר וּמַה־יֵּעָשֶׂ֖ה בָּֽהּ׃
모르드개가 날마다 후궁 뜰 앞으로 왕래하며 에스더의 안부와 어떻게 될 것을 알고자 하더라
Or HaChaim
ה׳ בדד ינחנו, "The Lord alone guided it, etc." This may be understood on the basis of Bereshit Rabbah 38,6 commenting on Hoseah 4,17: חבור עצבים אפרים הנח לו, "Ephrayim is addicted to images; let him be." According to the view of the Midrash as long as the Israelites will live peacefully with one another and they maintain unity, even the sin of idolatry may be allowed to fester, i.e. הנח לו. The meaning of the word is similar to the way it is used in Esther 2,18 "the king made a הנחה," an amnesty of outstanding taxes to certain of his provinces. The reason Moses chose the expression בדד, is to relate it to the word בד, alone, no longer part of a foreign culture, G'd will lead it.
Rashi
Adonoy Who saved me from the claws of the lion. I know that this incident did not occur to me for naught, but as an indication that in the future, I would be confronted with similar circumstances, as a salvation for Yisroel. I will therefore rely on this, and go out. And he was one of two righteous men, to whom [God] gave a hint, and they understood the matter, Dovid and Mordechai, as it is stated: "And every day Mordechai would walk before the courtyard…"18Megillas Esther 2:11. He said [to himself], 'It is not for naught that this righteous woman [Esther] has been taken into the bed of this uncircumcised one [Achashveirosh]. It can only mean that she is destined to stand up on behalf of Yisroel at a time of distress.'