'Conscience' in the Bible

the which is an image for the present time, according to which both gifts and sacrifices, unable to perfect as to conscience him that worshipped, are offered,

how much rather shall the blood of the Christ, who by the eternal Spirit offered himself spotless to God, purify your conscience from dead works to worship the living God?

Since, would they not indeed have ceased being offered, on account of the worshippers once purged having no longer any conscience of sins?

let us approach with a true heart, in full assurance of faith, sprinkled as to our hearts from a wicked conscience, and washed as to our body with pure water.

Pray for us: for we persuade ourselves that we have a good conscience, in all things desirous to walk rightly.