Also the only place in Qur'an where there is limitation of speech was for Muslims to be punished if they accuse a Muslim woman of sexual deviance without proof (Qathf قذف). There are verses God telling us how to deal with those who hurt us with their speech against God and Islam, etc with patience and in another verse that we shouldn't sit with them when they talk like that until they talk different (probably for possibility of dawa still but usually when people go to bad fatih speech you shouldn't even bother with reasoning with them just remind them of the ultimate truth of the afterlife that's laid out in another verse i forgot where)
Also that the prophet pbuh never killed or punished anyone for becoming non Muslim in front of him even like the one who said be just o Muhammad, and the ones who used to cuss him or insult him, also the jews who used to say God's hands are chained (but actually they're the ones who will be).
