'Faileth' in the Bible

For my life is spent with grief, and my years with sighing: my strength faileth because of mine iniquity, and my bones are consumed.

My heart panteth, my strength faileth me: as for the light of mine eyes, it also is gone from me.

For innumerable evils have compassed me about: mine iniquities have taken hold upon me, so that I am not able to look up; they are more than the hairs of mine head: therefore my heart faileth me.

Cast me not off in the time of old age; forsake me not when my strength faileth.

My flesh and my heart faileth: but God is the strength of my heart, and my portion for ever.

My knees are weak through fasting; and my flesh faileth of fatness.

Hear me speedily, O LORD: my spirit faileth: hide not thy face from me, lest I be like unto them that go down into the pit.