Christian morality is based on following Jesus and involves maintaining a relationship with God, keeping the commandments, and imitating Christ. Human acts can be morally evaluated based on three elements - the object, intention, and circumstances. Some acts are intrinsically evil due to their object, such as murder, and can never be justified. For an act to be morally good, all three elements must be good. Circumstances may increase or decrease responsibility but cannot make an intrinsically evil act moral. Overall, morality involves freely choosing to do good over evil through our actions.