For Doctrinal discernment Ephesians 4:14,. Our moral values derive from truth we hold and profess. They love me with their lips but their hearts are far away from me. Their worship of me is in vain. We study doctrine because we can't love Christ without the truth John 14:15 If you love me you will love my commands. We study because truth is anchored on the cornerstone who is Christ any teaching apart from Christ is false . 2John 9&10 everyone who goes ahead and follows another teaching other than Christ has no God...