What is the difference between "those who suppress their anger and those who pardon people" and "Allah does not like the public utterance of evil, except by one who has been wronged," and when is forgiveness and suppression of anger appropriate, and when is it appropriate to complain about injustice?

The difference between the two noble verses is that the first (An-Nisa: 149) shows the status of forgiveness and suppressing anger, which is a good deed (ihsan), whereas the second (An-Nisa: 148) came to explain the permissibility of seeking retribution from the oppressor, which is justice (adl). The status of ihsan in the first verse is higher than the status of adl in the second verse. The Sharia has permitted seeking retribution proportionate to the injustice, but forgiveness is better. Allah Almighty mentioned both statuses in Surah An-Nisa. So, His saying: ﴿Allah does not like the public utterance of evil speech, except by one who has been wronged﴾ is justice. Then, He encouraged ihsan through forgiveness by saying: ﴿If you disclose a good deed or conceal it or pardon an evil deed - indeed, Allah is ever Pardoning and Competent.﴾ Your forgiveness of one who wronged you is better than retaliating in kind, except in cases where forgiveness would lead to an increase in the evil of the aggressor.