'Blameless' in the Bible

Is not your piety your confidence, and your blameless ways your hope?

"Surely, God does not reject a blameless man, nor does he grasp the hand of the evildoers.

Although I am innocent, my mouth would condemn me; although I am blameless, it would declare me perverse.

I am blameless. I do not know myself. I despise my life.

"It is all one! That is why I say, 'He destroys the blameless and the guilty.'

I dread all my sufferings, for I know that you do not hold me blameless.

I am a laughingstock to my friends, I, who called on God and whom he answered -- a righteous and blameless man is a laughingstock!

Is it of any special benefit to the Almighty that you should be righteous, or is it any gain to him that you make your ways blameless?