4. Christ, the Redeemer of the world, is the one Mediator between God and men, and there is no other name under heaven by which we can be saved (cf. Acts 4:12). As we read in the Letter to the Ephesians: "in him, we have redemption through his blood, the forgiveness of our trespasses, according to the richness of his grace, which he has lavished upon us. For he has made known to us in all wisdom and insight ... his purpose which he set forth in Christ as a plan for the fullness of time, to unite all things in him, things in heaven and things on earth" (1:7-10). Christ, the Son who is of one being with the Father, is therefore the one who reveals God's plan for all creation, and for man in particular. In the memorable phrase of the Second Vatican Council, Christ "fully reveals man to man himself and makes his supreme calling clear".(2) He shows us this calling by revealing the mystery of the Father and his love. As the image of the invisible God, Christ is the perfect man who has restored to the children of Adam the divine likeness which had been deformed by sin. In his human nature, free from all sin and assumed into the divine Person of the Word, the nature shared by all human beings is raised to a sublime dignity: "By his incarnation the Son of God united himself in some sense with every man. He laboured with human hands, thought with a human mind, acted with a human will, and loved with a human heart. Born of Mary the Virgin he truly became one of us and, sin apart, was like us in every way".(3)