'Hot' in the Bible

And when you see a south wind blowing, you say, 'It will be burning hot;' and it comes to pass.

through the hypocrisy of men who teach falsely and have their own consciences seared as with a hot iron;

I know your doings--you are neither cold nor hot; I would that you were cold or hot!

Accordingly, because you are lukewarm and neither hot nor cold, before long I will vomit you out of My mouth.