what is meant by the verse “then do not be soft in speech…”
an example as presented above, the woman in the beginning speaking with a neutral voice, asking a question on behalf of one of the sisters in the sisters section (it is a segregated conference to be fully clear)
this is simply a reminder to the sisters regarding this issue, and a clarification also that this does not mean that a woman must stay silent, especially in cases of necessity, unlike the understanding of the christians
“women should remain silent in the churches. they are not allowed to speak, but must be in submission, as the law says.”
— bible, 1 corinthians 14:34
“i do not permit a woman to teach or to assume authority over a man; she must be quiet.”
— bible, 1 timothy 2:12
rather, this is a protection from الله, as made clear in the verse “lest he in whose heart is disease may covet” meaning that it is not that every man has evil intentions but rather, it is that a woman is safeguarded from those who may have ill intent, because we know that it indeed exists
this also is part of modesty, and modesty is a part of faith, so if a woman intends to speak, “speak with appropriate speech.” (33:25)
to further clarify, here is the statement of shaykh ibn uthaymeen رحمه الله which i think is relevant:
“for instance, the obligation of hijab in islaam is not because islaam accuses every woman who does not wear hijaab of being immoral, or because all men will look at her as a focus for their inappropriate actions and behaviour. islamic societies raise people to be righteous and pious at all stages of upbringing, in the family and in the street, school, mosque and at university. the fact is that islamic rulings that encourage good manners, decency, chastity and modesty which are enough to deter many people from committing immoral actions, not just covering.
but islaam does not only look at the majority of people; rather it pays attention to the fact that there is also a small percentage of evildoers, in order to protect the well-being of the majority and so that they will not be affected by the actions of the minority, that could harm and destabilise society with their actions, such as violence and abuse against women”
source: qur’aan (all the parts of the verse is in 33:25), shaykh ibn ‘uthaymeen, al-liqaa al-shahri 17