How long did Christ live on earth?
Christ lived on earth about thirty-three years, and led a most holy life in poverty and suffering.
Why did Christ live so long on earth?Christ lived so long on earth to show us the way to heaven by His teachings and example.
How must we prove ourselves true friends of Jesus Christ?We must prove ourselves true friends of Jesus Christ by adoring and loving Him as our Lord and Redeemer, and by imitating His virtues.
How should we worship the Blessed Virgin Mary?
We should worship the Blessed Virgin Mary with the highest honor given to any creature, but infinitely below that which we give to Jesus Christ.
Advanced Catechism of Catholic Faith and Practice, 1922.