Sforno on Exodus 9:16/ספורנו על שמות ט׳:ט״ז

1בעבור הראותך את כחי, so that you may finally display repentance. In the final analysis, I am not interested in the death of the sinner but in his rehabilitation through his own efforts. (Ezekiel 18,31)

2ולמען ספר שמי, which will result in repentance by the multitude.