'Mourning' in the Bible

I mourned for them as I would for a friend or my brother. I bowed down in sorrow as if I were mourning for my mother.

I am dazed and completely humiliated; all day long I walk around mourning.

I will pray to God, my high ridge: "Why do you ignore me? Why must I walk around mourning because my enemies oppress me?"

For you are the God who shelters me. Why do you reject me? Why must I walk around mourning because my enemies oppress me?