1Anger takes speech in one of two directions. Some of us go silent and let the face carry it, others turn suddenly fluent and very precise.
Being articulate under provocation feels like being in control, and the two are easy to confuse. A cleanly aimed sentence often does more damage than a shout, partly because it was aimed. Worth knowing which way you tend to go, because that is the one to watch for in yourself.
Islamic evidence
How foul and evil is what you have done in my absence (Quran 7:150), said by a prophet on his return. Anger can be perfectly articulate and still be anger.
“On his return to his people, angry and aggrieved, Moses said, ‘How foul and evil is what you have done in my absence! Were you so keen to bring your Lord’s judgement forward?’ He threw the tablets down and seized his brother by the hair, pulling him towards…”
Qur'an 7:150
Psychological evidence
A meta-analysis of 306 experimental comparisons found that deliberately changing how you think about a situation reliably shifted how it felt, while simply trying to hide the feeling was among the least effective things to do. That covers the silent pole directly: going quiet and holding it in tends not to work. It says nothing about eloquence, so treat that half as clinical observation rather than tested finding.
Webb TL, Miles E, Sheeran P. (2012). Psychological bulletin · doi
Review detail
Why it works. Fluent, cutting speech is anger reaching for a sharper tool, not anger cooling down.