'Fading' in the Bible

Be gracious to me, LORD, because I am fading away. Heal me, because my body is distressed.

I am fading away like a shadow late in the day; I am shaken off like a locust.

Answer me quickly, Lord! My strength is fading. Do not reject me, or I will join those descending into the grave.

The human person is a mere empty breath; his days are like a fading shadow.