Sforno on Leviticus 24:16/ספורנו על ויקרא כ״ד:ט״ז

1ונוקב שם ה' מות יומת, the penalty of someone cursing the tetragram is not comparable to the punishment for someone who “merely” cursed one of G’d’s attributes. The individual described in our verse will be executed publicly by stoning, and all who heard him commit this crime must participate actively in the execution.

2כגר כאזרח, and the type of the penalty applied to the blasphemer in our paragraph was not especially harsh seeing the guilty person had been a convert. Natural born Jew and converts are treated exactly alike in the legislation concerning blasphemy.