'Fails' in the Bible

For my life nears its end in pain; my years draw to a close as I groan. My strength fails me because of my sin, and my bones become brittle.

My heart pounds, my strength fails me, even the gleam in my eye is gone.

For innumerable dangers surround me. My sins overtake me so I am unable to see; they outnumber the hairs of my head so my strength fails me.

(since the redemption price for their life is costly and it always fails),

Don’t discard me in my old age;as my strength fails, do not abandon me.

My flesh and my heart fails, but God is the strength of my heart and my portion forever.

My soul longs and even fails for the courtyards of Yahweh. My heart and flesh sing for joy to the living God.

Answer me quickly, Lord;my spirit fails.Don’t hide Your face from me,or I will be like thosegoing down to the Pit.