How is the Old Covenant important to Catholics?

Because Catholic is the one true Church that Jesus established and the Catholics are God's people. If you have not already, go to the nearest Catholic Church and enquire.   Catholics are...

A Catholic Church is important to Catholic people because it is the house of God and a building that should be given over entirely to God's worship. However, a Catholic Church is even more important...

The most important thing to Catholics is Our Blessed Lord and Savior, Jesus Christ, who became incarnate of the Virgin Mary, suffered and died for us on the Cross, and established the Catholic Church...

The Eucharist is the source and summit for all Catholics.

They call them sacraments-- 1)Baptism 2)Confirmation 4)Communion 5)Marriage 6)Holy Orders 7)Anointing of the Sick