Or HaChaim on Exodus 23:10/אור החיים על שמות כ״ג:י׳

1 ושש שנים תזרע את ארצך, and for six years you will seed your land, etc. This commandment is connected to the previous one warning us how to avoid the taste of being an alien, i.e. an exiled person similar to what is written in Leviticus 26,34: "then the land will make up for its sabbaths, etc."