'Fail' in the Bible

Help, Jehovah; for the godly man ceaseth; For the faithful fail from among the children of men.

I am weary with my crying; my throat is dried: Mine eyes fail while I wait for my God.

Is his lovingkindness clean gone for ever? Doth his promise fail for evermore?

But my lovingkindness will I not utterly take from him, Nor suffer my faithfulness to fail.

Mine eyes fail for thy word, While I say, When wilt thou comfort me?

Mine eyes fail for thy salvation, And for thy righteous word.