'Blameless' in the Bible

These are the family records of Noah. Noah was a righteous man, blameless among his contemporaries; Noah walked with God.

When Abram was 99 years old, the LORD appeared to Abram and announced, "I am God Almighty. Live in constant awareness that I'm always with you, and be blameless.

Now Abimelech had not come near her; and he said, “Lord, will You slay a nation, even though blameless?

And he said, Now also let it be according unto your words: he with whom it is found shall be my servant; and ye shall be blameless.