It’s been awhile since I’ve written about Catholic
misconceptions, but given the large number of questions and assumptions about this subject from
people visiting my prayer page for the Pope, I wanted to briefly address it. First,
Catholics do NOT believe that the Pope is God. The Pope is a man, albeit one
that we Catholics believe has been called to the highest office in the Church
and when exercising that office has special gifts and prerogatives. So, why do we
call him holy father then?

Even the word pope comes from the Latin for papa, i.e. dad.
The pope functions as an earthly father to God’s family, much like St. Joseph functioned as
a foster father to Jesus while on earth, or a child has his own earthly father.
None of these take away from God’s ultimate and supreme position as Father. In
fact, especially if the earthly father is holy and has integrity, then God’s
role as Father is more clearly modeled and understood. In this way, John Paul
II especially has revealed God’s love to so many people.

So, why do we call him “holy” father? This is related to why
we call the Church “holy” in the creeds. In spite of a membership of sinners,
she is holy because her head, Christ, is holy. The catechism states:

"The Church . . . is held, as a matter of faith, to
be unfailingly holy. This is because Christ, the Son of God, who with
the Father and the Spirit is hailed as ‘alone holy,’ loved the Church
as his Bride, giving himself up for her so as to sanctify her; he
joined her to himself as his body and endowed her with the gift of the
Holy Spirit for the glory of God." The Church, then, is "the holy People of God," and her members are called "saints." (#823)

Also, in spite of a Pope’s human frailties, he can be called holy because of his office as Pope.
Once again, the holiness that comes from this office comes not from him or his actions, but only from the
holiness and grace of Christ, which we believe he gives to all in the Church
who seek him.

In conclusion, please do not confuse what we are saying. However,
we speak with affection towards John Paul II because to Catholics, he is our
spiritual earthly father, one who has graciously modeled the love of the Father
in heaven to us. And, like an earthly father, his sickness and nearing death are
heartbreaking. This little essay is NOT meant to start a debate, but to help people understand where we come from, whether agreed or not.

Sources and further reading:

Essay XI: Rev. George D. Smith
Is the Pope A Holy Father?
Andrew Apologetic Ministries
Catechism of the Catholic Church