'Blameless' in the Bible

I was also blameless with him. I kept myself from my iniquity.

Keep back your servant also from presumptuous sins. Let them not have dominion over me. Then I will be upright. I will be blameless and innocent of great transgression.

I will be careful to live a blameless life. When will you come to me? I will walk within my house with a blameless heart.

Blessed are those whose ways are blameless, who walk according to Yahweh's law.

Let my heart be blameless toward your decrees, that I may not be disappointed. KAF