By doing business honestly, a person fulfills [the mitzvah of] “You shall love [God]” (Deuteronomy 6:5). As our Sages, of blessed memory, said: “You shall love”—Heaven’s name should become beloved through you (Yoma 86a).

And when a person fulfills “You shall love,” his livelihood is without struggle or toil. As our Sages, of blessed memory, said: “A person’s livelihood is as difficult as splitting the Red Sea” (Pesachim 118a). Splitting the Red Sea was in the merit of Avraham, who is himself the aspect of “And you shall love,” as our Sages, of blessed memory, said: “the sea returned just before morning” (Exodus 14:27)—this is the morning of Avraham (Zohar II, 170b).

Thus it is that when morning—the aspect of Avraham/love—arrives, the difficult becomes relaxed. For until the morning, splitting the Red Sea was difficult for Him. From this we may conclude that by doing business honestly, a person is linked to the aspect of “And you shall love”/Avraham, and as a result he has no difficulty [earning] his livelihood.