'Sad' in the Bible

But as for me, when they were ill I put on the clothing of sorrow: I went without food and was sad, and my prayer came back again to my heart.

Why are you in despair, O my soul?And why are you restless and disturbed within me?Hope in God and wait expectantly for Him, for I shall again praise Him,The help of my [sad] countenance and my God.

Because Thou hast showed me many and sad distresses, Thou turnest back -- Thou revivest me, And from the depths of the earth, Thou turnest back -- Thou bringest me up.