I have been told that the Rokeach, in his introduction to sefer Devarim, writes that

מספר משנה תורה - MiSefer Mishneh Torah shares the same gematria (1386) as סמוכים לעד לעולם עשויים באמת ויושר - They stand fast for ever and ever, done in truth and uprightness. [(Tehillim 111:8)][1].

Where exactly can this Rokeach be found? I have searched but could not find it unfortunately. Also, what exactly does it mean, that these two are related through having the same gematria?

[Rashi][2] on this posuk in Tehillim explains that:

>Steadfast are His commandments, supported by might, strengthened with punishments and warnings, and the chapters are set one next to the other in sequence and to expound on them. This is what Solomon said (Song 5:15): “His thighs are pillars of marble, etc.”

But I don't see the connection it has with "MiSefer Mishneh Torah". 


  [1]: https://www.sefaria.org/Psalms.111.8?lang=bi&with=all&lang2=en
  [2]: https://www.sefaria.org/Psalms.111.8?lang=bi&with=Rashi&lang2=en