'Conscience' in the Bible

which is a simile in regard to the present time, in which both gifts and sacrifices are offered, which are not able, in regard to conscience, to make perfect him who is serving,

how much more shall the blood of the Christ (who through the age-during Spirit did offer himself unblemished to God) purify your conscience from dead works to serve the living God?

since, would they not have ceased to be offered, because of those serving having no more conscience of sins, having once been purified?

may we draw near with a true heart, in full assurance of faith, having the hearts sprinkled from an evil conscience, and having the body bathed with pure water;

Pray for us, for we trust that we have a good conscience, in all things willing to behave well,