'Sadness' in the Bible

So the king said to me, "Why is your face sad since you are not sick? This is nothing but sadness of the heart." And I was very much afraid.

Sorrow [is] better than laughter, for by sadness of countenance the heart is made good.

Look! My servants shall shout {for joy}, but you, you shall cry out {for pain} and howl {for sadness}.