'Blameless' in the Bible

The Lord repaid me for my godly deeds; he rewarded my blameless behavior.

I was blameless before him; I kept myself from sinning.

The Lord rewarded me for my godly deeds; he took notice of my blameless behavior.

You prove to be reliable to one who is blameless, but you prove to be deceptive to one who is perverse.