The Gemara relates (Kiddushin 82A): “Have you ever seen an animal or bird that has a job? Yet they are sustained without pain. Wasn’t the world created to serve me, and wasn’t I created to serve my Creator? So shouldn’t I be able to be sustained easily? However, I have committed bad actions, which obstruct my livelihood.”
We see from here that if a person acts properly, he will have an easy and good parnassah, as the only thing that obstructs one’s livelihood is improper actions.
Sefer Degel Machaneh Efraim writes that this is hinted to in this verse. The word ‘m’asher” can be translated to mean correcting one’s ways and acting in an upright (yashar) manner. Thus, the pasuk is saying that if one acts this way, he will have “bread and oil”, meaning he will have a good parnassah.
