This is the teaching of the encyclical letter of Pope John Paul II, Veritatis Splendor . Jesus Christ is the concrete, absolute, unqualified norm of all ethical actions. The Catechism of the Catholic Church affirms this by asserting that he is the unique measure and the archetype of divine love and the response to it. The ethical actions of Christians must mirror the reality that they live with Christ in the final times. By His death and resurrection, Christ carried creation to its eschatological fulfillment.
Moral perfection is the goal of Christian reflection on ethics.
Our perfection consists in taking part in a mission, the origin of which is within the Trinity of Divine Persons and which becomes incarnate in Jesus Christ. The perfect obedience of Jesus to His Father is the valid and applicable norm for all ethical situations. This becomes clear when one reflects upon the saving link between Christ and sinners. By the Paschal mystery we all 'abide' in Christ in the unity of the Holy Spirit. We share in His freedom through faith.