Trust and good speech is a matter of life and death.
Ignorance leads to distrust
distrust leads to evil gossip
evil gossip leads to hate
hate leads to conflict
conflict leads to
people killing each other.
Surat Al-Hujurat [49:9-12] warns us about that.
So think wisely
before you speak freely.
And patiently reply the foolish
with a good word.
Surat Al-Furqan [25:63]
وَعِبَادُ الرَّحْمَٰنِ الَّذِينَ يَمْشُونَ عَلَى الْأَرْضِ هَوْنًا وَإِذَا خَاطَبَهُمُ الْجَاهِلُونَ قَالُوا سَلَامًا
And the servants of (Allah) The Most Merciful are those who walk upon the earth in humility and sedateness, and when the foolish address them [with bad words], they reply back with [mild words of] gentleness.