Persons who played prominent roles in the history of salvation often received their names from God Himself. Adam — man of the earth; Eve — mother of all the living; Abraham — father of many nations; Peter — the rock. The Savior's precursor was given the name God assigned him. According to divine precedent, then, the name of the Redeemer should not be accidental, of human choosing, but given by God Himself. For His name should express His mission. We read in Sacred Scripture how the angel Gabriel revealed that name to Mary: "You shall call His name Jesus." And to St. Joseph the angel not merely revealed the name but explained its meaning: "You shall call His name Jesus, for He shall save His people from their sins." The Messiah should not only be the savior, but should be called Savior. With Jesus, therefore, the name actually tells the purpose of His existence. This is why we must esteem His name as sacred. Whenever we pronounce it, we ought to bow our heads; for the very name reminds us of the greatest favor we have ever received, salvation.
Excerpted from The Church's Year of Grace, Pius Parsch