לא תעשק שכיר. וַהֲלֹא כְבָר כָּתוּב? אֶלָּא לַעֲבֹר עַל הָאֶבְיוֹן בִּשְׁנֵי לָאוין, "לֹא תַעֲשֹׁק שְׂכַר שָׂכִיר" שֶׁהוּא עָנִי וְאֶבְיוֹן, וְעַל הֶעָשִׁיר כְּבָר הֻזְהַר (ויקרא י"ט) "לֹא תַעֲשֹׁק אֶת רֵעֲךָ" (ב"מ ס"א): לא תעשק שכיר THOU SHALT NOT WRONG ANY HIRED SERVANT — But has not this already been stated in Leviticus 19:13? But it is repeated here to make one transgress in respect of the hired, servant who is poor (i.e., if he wrongs such a person) two negative commands, for the meaning of the text here is: thou shalt not suppress the wages of an hired servant who is poor and needy. (The meaning is not: thou shalt not wrong a hired servant, the poor and the needy). As to the well-to-do hired servant one has already been prohibited to wrong him (Leviticus 19:13): “thou shalt not wrong thy neighbour” (Bava Metzia 61a).
אביון. הַתָּאֵב לְכָל דָּבָר: אביון is one who longs for everything, (lacks all the necessities of life; cf. Rashi on Deuteronomy 15:4).
מגרך. זֶה גֵּר צֶדֶק: מגרך [WHETHER HE BE OF THY BRETHREN, OR] OF ANY STRANGERS — this refers to a “proselyte of righteousness” (who embraces the entire Jewish Faith out of conviction) (Sifrei Devarim 278:4),
בשעריך. זֶה גֵּר תּוֹשָׁב הָאוֹכֵל נְבֵלוֹת: בשערך [STRANGERS THAT ARE] WITHIN THY GATES — this refers to a stranger [who has undertaken not to worship idols] but eats carrion (who may reside in the land of Israel) (Sifrei Devarim 278:5),
אשר בארצך. לְרַבּוֹת שְׂכַר בְּהֵמָה וְכֵלִים (בבא מציעא קי"א): אשר בארצך [OF ANY STRANGERS] THAT ARE IN THY LAND — this is intended to include in the prohibition of withholding what is due to one’s neighbor the payment for using his animals or utensils (Sifrei Devarim 278:5; Bava Metzia 111b).