1 Corinthians 2:15 The person with the Spirit makes judgments about all things, but such a person is not subject to merely human judgments,
Our ability to judge what is right and wrong comes from the Holy Spirit and is not limited only to what we know. Rather, when we listen to the Holy Spirit, we can determine what is morally and ethically correct.
Very true. That innate (God given) moral standard that all men have knowledge of is really the catalyst behind many peoples search for God, including the great CS Lewis.
Which makes it all the more interesting that some fail to heed or listen to it.