Everybody should speak thoughtfully. Shouldn’t speak carelessly and say every what crosses in mind.
Also, everybody should say something rightfully and thought about the consequences. Don’t say something that still uncertain or something that has bad implications.
Abu Hurairah (may Allah blesses him), that the Prophet (ﷺ) says,
إن العبد ليتكلم بالكلمة ما يتبين فيها يزل بها إلى النار أبعد مما بين المشرق والمغرب
“A person utters a word thoughtlessly (i.e., without thinking about its being good or not) and, as a result of this, he will fall down into the fire of Hell deeper than the distance between the east and the west” [al-Bukhari and Muslim].
So, speak thoughtfully, rightfully and carefully.
Anything else can wait, but death cannot. Giving charity protects you from severe death, insha Allah. Donate one here: ussunnah.org/ongoingcharity