'Conscience' in the Bible

which [was] a symbol for the present time, in which both the gifts and sacrifices which were offered were not able to perfect the worshiper with respect to the conscience,

let us approach with a true heart in the full assurance of faith, our hearts sprinkled [clean] from an evil conscience and our bodies washed with pure water.

Pray for us, for we are convinced that we have a good conscience, [and] want to conduct ourselves commendably in every [way].