Here’s a little drash on Parsha Nitzavim
Devarim (Deuteronomy) Chapter 30
11 “For this commandment which I command you this day, is not concealed from you, nor is it far away. […] 14 Rather, [this] thing (haDavar – commandment) is very close to you; it is in your mouth and in your heart, so that you can fulfill it.”
[this] thing (haDavar – the commandment, prophetic word of Moshe) is expressed in the singular to relate the unity of the entire Torah in ONE Word – Devarim 6.5, Ahavah HaShem, the love of / for HaShem; and love of one’s neighbor VeYiqrah 19.18. See Devarim 30.6, 16 and 20; Mishley (Proverbs) 6.22 “When thou walkest, it shall lead thee, when thou liest down, it shall watch over thee; and when thou awakest, it shall talk with thee.”
In the same way that B’midbar (Numbers) 15.39 (“And it shall be unto you for a fringe, that ye may look upon it, [….]”) pethil techelet, (the fringe of blue on the tziztith) is expressed in the singular; so too does Devarim (Deuteronomy) Chapter 30.11, 14 express the Mitzvoth (commandment) in the singular.
One should not turn to the right or to the left (“towards the corners”) but one should walk in a straight path: tzitzith (fringes) is spelled tzaddi yud tzaddi thav צִיצִת to express righteousness, righteousness is HaShem’s Torah (teaching haDavar): It (the Commandment AHAVAH) is like HaShem, (ECHAD)! As it is said, “the simplicity of the simple is at one with the Simplicity of the Holy One” ….
Shabbat Shalom, v’K’siva v’chasima tova
Yochanan Ezra ben Avraham