The Three Kings traveled from afar to bring gifts of gold, frankincense, and myrrh to Jesus, the Universal King. The Feast Day of the Epiphany carries an extremely profound significance because of the fact that the kings were gentiles, not Jews. This event shows that from the beginning of Jesus’ human existence he came to be everyone’s messiah, to save all people. Epiphany means “manifestation” or “appearance” and in Jesus’ human existence He became manifest to all.
Jesus came to save all of humanity. He came to bring peace to strife and spread the Gospel. In all of God’s splendor He sent his Son, Jesus, to build His Church for all people. The term “Catholic” means “according to the whole.” Jesus founded the Catholic Church so that everyone may be saved. All of Christianity, whether catholic or not, is able to trace its roots back to the word “Catholic” and the Church that Christ founded, the Catholic Church. Each Christian denomination has aspects of Catholicism in their rituals or beliefs. While Christians from the various denominations may not be fully Catholic due to their not belonging to the One True Church those Christians have bits and pieces of Catholicism within them, so in effect they are partially Catholic. Since God came to save all of humanity of course he has the capacity to save those who are not in visible unity with the Catholic Church.
Here is this quote from Lumen Gentium:
“Those who through no fault of their own, do not know the Gospel of Christ or his Church, but who nevertheless seek God with a sincere heart, and, moved by grace, try in their actions to do his will as they know it through the dictates of their conscience–those too may achieve eternal salvation”