'Innocence' in the Bible

Didn't he tell me, 'She is my sister?' She, even she herself, said, 'He is my brother.' In the integrity of my heart and the innocence of my hands have I done this."

I will wash my hands in innocence, so I will go about your altar, Yahweh;

Surely in vain I have cleansed my heart, and washed my hands in innocence,

My God has sent his angel, and has shut the lions' mouths, and they have not hurt me; because as before him innocence was found in me; and also before you, O king, have I done no hurt.