John Foster answers that question this way. “If our conscience be mistaken because we have not taken due trouble to enlighten it, then for that neglect of cultivating our conscience we are responsible.”
You see dear friends, our conscience, that inner monitor that all people possess, is fallen and gives off a faulty light. Following it without question is dangerous. However, a conscience fed a daily diet of the Holy Scriptures, guided unceasingly by the Holy Spirit, and singularly serving a holy cause, will never be mistaken. A conscience submitted to God can be followed.
Take Away: A conscience submitted to God can be followed.