Antonio, Furthermore, Jesus Christ promised the Apostles that He would send them the Paraclete to bring them into all remembrance of what He had told them and to bring them into fullness of Truth as they could bear it and He would not let evil prevail against His Church, which is the House of God, the pillar and foundation of Truth. (religion.blogs.cnn.com)
chief, Others besides Catholics may find oneness with God through Baptism however they lack fullness of Truth which is only found in the Catholic Church. (religion.blogs.cnn.com)
If there is any further fullness of Truth we need to know, the Holy Spirit will lead the Church to it. (religion.blogs.cnn.com)