Sforno on Exodus 20:12/ספורנו על שמות כ׳:י״ב

1למען יאריכון ימיך, these are the five Commandments which by their observance contribute to your enjoying a life of a single dimension, i.e. length without breadth, another way of stating what the Talmud called in Kidushin 39 “in a world which consists entirely of “length,” [unlimited duration. Ed.]. By performing these five Commandments one renders honour to G’d, as a result of which the one rendering this honour to G’d will himself become part of G’d’s eternal life. Doing this involves knowing that G’d created the universe out of “nothing,” no physical substance. It also involves accepting G’d as the exclusive Divinity in the universe and therefore not worshipping anyone else or anything else. It also involves not only not rebelling against Him in deed, but not contemplating rebellion even in one’s thoughts or speech It involves actively honouring Him, after all, He is our father, our maker. Are we not commanded to even honour our mortal parents?

2על האדמה, by observing the above-mentioned five Commandments you will merit to enjoy life without being exiled from your ancestral land. Observance of the other five Commandments are designed to protect you against falling victim to harm befalling your body, or your property, or your dignity, your standing in the eyes of your peers. Here too, observance includes not only abstaining from violating these Commandments by deed, but also not violating them by word of mouth or even contemplating violation in your mind. Basically, the last five Commandments are addressed to your life on this earth, whereas the former are addressed to ensuring your life beyond the transient life on earth.