'Blameless' in the Bible

so that you can decide what is best, and thus be sincere and blameless for the day of Christ,

so that you may be blameless and pure, children of God without blemish though you live in a crooked and perverse society, in which you shine as lights in the world

In my zeal for God I persecuted the church. According to the righteousness stipulated in the law I was blameless.