The Apostles Show the Way
The New Testament is filled with examples of and references to spiritual father-son and father-child relationships. Many people are not aware just how common these are, so it is worth quoting some of them here.
Paul regularly referred to Timothy as his child: “Therefore I sent to you Timothy, my beloved and faithful child in the Lord, to remind you of my ways in Christ” (1 Cor. 4:17); “To Timothy, my true child in the faith: grace, mercy, and peace from God the Father and Christ Jesus our Lord” (1 Tim. 1:2); “To Timothy, my beloved child: Grace, mercy, and peace from God the Father and Christ Jesus our Lord” (2 Tim. 1:2).
He also referred to Timothy as his son: “This charge I commit to you, Timothy, my son, in accordance with the prophetic utterances which pointed to you, that inspired by them you may wage the good warfare” (1 Tim 1:18); “You then, my son, be strong in the grace that is in Christ Jesus” (2 Tim. 2:1); “But Timothy’s worth you know, how as a son with a father he has served with me in the gospel” (Phil. 2:22).
Paul also referred to other of his converts in this way: “To Titus, my true child in a common faith: grace and peace from God the Father and Christ Jesus our Savior” (Titus 1:4); “I appeal to you for my child, Onesimus, whose father I have become in my imprisonment” (Philem. 10). None of these men were Paul’s literal, biological sons. Rather, Paul is emphasizing his spiritual fatherhood with them.
Spiritual Fatherhood
Perhaps the most pointed New Testament reference to the theology of the spiritual fatherhood of priests is Paul’s statement, “I do not write this to make you ashamed, but to admonish you as my beloved children. For though you have countless guides in Christ, you do not have many fathers. For I became your father in Christ Jesus through the gospel” (1 Cor. 4:14–15).
Peter followed the same custom, referring to Mark as his son: “She who is at Babylon, who is likewise chosen, sends you greetings; and so does my son Mark” (1 Pet. 5:13). The apostles sometimes referred to entire churches under their care as their children. Paul writes, “Here for the third time I am ready to come to you. And I will not be a burden, for I seek not what is yours but you; for children ought not to lay up for their parents, but parents for their children” (2 Cor. 12:14); and, “My little children, with whom I am again in travail until Christ be formed in you!” (Gal. 4:19).
John said, “My little children, I am writing this to you so that you may not sin; but if any one does sin, we have an advocate with the Father, Jesus Christ the righteous” (1 John 2:1); “No greater joy can I have than this, to hear that my children follow the truth” (3 John 4). In fact, John also addresses men in his congregations as “fathers” (1 John 2:13–14).
By referring to these people as their spiritual sons and spiritual children, Peter, Paul, and John imply their own roles as spiritual fathers. Since the Bible frequently speaks of this spiritual fatherhood, we Catholics acknowledge it and follow the custom of the apostles by calling priests “father.” Failure to acknowledge this is a failure to recognize and honor a great gift God has bestowed on the Church: the spiritual fatherhood of the priesthood.
Catholics know that as members of a parish, they have been committed to a priest’s spiritual care, thus they have great filial affection for priests and call them “father.” Priests, in turn, follow the apostles’ biblical example by referring to members of their flock as “my son” or “my child” (cf. Gal. 4:19; 1 Tim. 1:18; 2 Tim. 2:1; Philem. 10; 1 Pet. 5:13; 1 John 2:1; 3 John 4).
All of these passages were written under the inspiration of the Holy Spirit, and they express the infallibly recorded truth that Christ’s ministers do have a role as spiritual fathers. Jesus is not against acknowledging that. It is he who gave these men their role as spiritual fathers, and it is his Holy Spirit who recorded this role for us in the pages of Scripture. To acknowledge spiritual fatherhood is to acknowledge the truth, and no amount of anti-Catholic grumbling will change that fact.