2. (Compare Heb 2:3.) Argument a fortiori.
      spoken by angels--the Mosaic law spoken by the ministration of angels (De 33:2; Ps 68:17; Ac 7:53; Ga 3:19). When it is said, Ex 20:1, "God spake," it is meant He spake by angels as His mouthpiece, or at least angels repeating in unison with His voice the words of the Decalogue; whereas the Gospel was first spoken by the Lord alone.
      was steadfast--Greek, "was made steadfast," or "confirmed": was enforced by penalties on those violating it.
      transgression--by doing evil; literally, overstepping its bounds: a positive violation of it.
      disobedience--by neglecting to do good: a negative violation of it.
      recompense-- (De 32:35).

JFB.