Priests Living in Sin: Do They Mediate God’s Grace?
Since the time of Augustine (4th–5th century AD), the Catholic Church’s answer to this question has been that the sacraments administered by an ordained Catholic priest (absolution, the Eucharist, baptism, etc.) effectively confer God’s grace to the believer regardless of the severity of the sins committed by the priest (ex opere operato)[1]. According to the Catechism, “From the moment that a sacrament is celebrated in accordance with the intention of the Church, the power of Christ and his Spirit acts in and through it, independently of the personal holiness of the minister.”[2]
The subject is complex, as it is related to many other fundamental Catholic teachings (sacraments, priesthood, etc.) that we will not discuss in this article. In the following, we would like to focus specifically on the question posed in the title and examine it in the light of biblical passages.

1 Is a Sinful Life an Obstacle?
Chapter 9 of the Gospel of John tells the story of the healing of a man born blind. The man who regained his sight came into sharp conflict with the Jewish religious leaders, who wanted to prove that no miracle had taken place. Here is an excerpt from that conflict:
So for the second time they called the man who had been blind and said to him, “Give glory to God. We know that this man is a sinner.” He answered, “Whether he is a sinner I do not know. One thing I do know, that though I was blind, now I see.” They said to him, “What did he do to you? How did he open your eyes?” He answered them, “I have told you already, and you would not listen. Why do you want to hear it again? Do you also want to become his disciples?” And they reviled him, saying, “You are his disciple, but we are disciples of Moses. We know that God has spoken to Moses, but as for this man, we do not know where he comes from.” The man answered, “Why, this is an amazing thing! You do not know where he comes from, and yet he opened my eyes. We know that God does not listen to sinners, but if anyone is a worshipper of God and does his will, God listens to him. Never since the world began has it been heard that anyone opened the eyes of a man born blind. If this man were not from God, he could do nothing.” They answered him, “You were born in utter sin, and would you teach us?” And they cast him out. (John 9:24–34)
The theologically untrained, healed blind man knew with his sincere heart and simple common sense that God only uses those who fear him and do his will to mediate his grace. He assumed that this was obvious to all other sincere people. The Jewish leaders, who were well versed in the scriptures and skilled in twisting their meaning, could not, or more accurately, did not want to arrive at this simple conclusion. Yet this is stated in several places in the Old Testament scriptures, which they often refer to:
If one turns away his ear from hearing the law, even his prayer is an abomination. (Proverbs 28:9)
The LORD is far from the wicked, but he hears the prayer of the righteous. (Proverbs 15:29)
If I had cherished iniquity in my heart, the Lord would not have listened. (Psalm 66:18)
“When you come to appear before me, who has required of you this trampling of my courts? Bring no more vain offerings; incense is an abomination to me. New moon and Sabbath and the calling of convocations — I cannot endure iniquity and solemn assembly. Your new moons and your appointed feasts my soul hates; they have become a burden to me; I am weary of bearing them. When you spread out your hands, I will hide my eyes from you; even though you make many prayers, I will not listen; your hands are full of blood. (Isaiah 1:12–15)
“And now, O priests, this command is for you. If you will not listen, if you will not take it to heart to give honour to my name, says the LORD of hosts, then I will send the curse upon you and I will curse your blessings. Indeed, I have already cursed them, because you do not lay it to heart. (Malachi 2:1–2)
The last passage from the Book of Malachi refers to Old Testament (Levitical) priests, not Catholic priests, yet it shows that God does not want to give blessings through people who live in sin, who blaspheme and desecrate his name with their evil lives.
2 Can the Blind Lead the Blind?
If someone consciously lives in sin, they are unable to lead others to God:
Then the disciples came and said to him, “Do you know that the Pharisees were offended when they heard this saying?” He answered, “Every plant that my heavenly Father has not planted will be rooted up. Let them alone; they are blind guides. And if the blind lead the blind, both will fall into a pit.” (Matthew 15:12–14)
Jesus did not think that people living in sin (the spiritually blind) had no influence on those whom they wanted to “help” (e.g. as a spiritual father or spiritual counselor).
The apostles themselves experienced that although Jesus gave them authority to heal and cast out demons (Matthew 10:1), God could not use them in a situation when a desperate father asked them to cast out an evil spirit from his son (Matthew 17:19–20). This is not to say that the apostles were living in serious sin, but this case shows that the effectiveness of God’s grace indeed depends much on the personal faith and life of those he wants to use to convey his grace.
In writing about church overseers and deacons, the Apostle Paul considers integrity to be particularly important:
Deacons likewise must be dignified, not double-tongued, not addicted to much wine, not greedy for dishonest gain. They must hold the mystery of the faith with a clear conscience. And let them also be tested first; then let them serve as deacons if they prove themselves blameless. (1 Timothy 3:8–10)
This section addresses what sort of life someone must have had before becoming a Christian to bear the higher responsibility (since God expects all Christians to give up drunkenness and greed). It is clearly visible that God cares what sort of life those lead, who want to take responsibility for the faith of others.[3]
3 Sin Acts as Leaven
Finally, another quotation from one of Paul’s letters:
… Do you not know that a little leaven leavens the whole lump? Cleanse out the old leaven that you may be a new lump, as you really are unleavened. … But now I am writing to you not to associate with anyone who bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler — not even to eat with such a one. For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge? God judges those outside. “Purge the evil person from among you.” (1 Corinthians 5:6–7, 11–13)
Here Paul is not writing about whether a person living in sin can be a leader of a congregation, but rather about whether someone who lives in serious sin can belong to God’s church at all. If the church allows this, sin will corrupt the entire community like leaven. How much more serious is the situation when the leaders of the “church” also live in sin, yet the credibility of their “ministry” is protected by dogma[4], and those who question it are excommunicated!
God does not distribute grace as if through vending machines that dispense the requested product at the push of a button. He wants a sincere relationship with us, through which he can personally convey his grace.[5]
Footnotes
- “Ex opere operato” is Latin for “from the act performed”, meaning that the sacrament acts through Christ’s power alone, and not through the minister. Catechism of the Catholic Church: Paragraph 1128. https://www.catholicculture.org/culture/library/catechism/cat_view.cfm?recnum=3801
- Ibid
- For more about this in detail, read our article “Church Structure: Positions or Different Kinds of Service?”
- “If any one saith, that a minister, being in mortal sin,-if so be that he observe all the essentials which belong to the effecting, or conferring of, the sacrament,-neither effects, nor confers the sacrament; let him be anathema.” – Council of Trent (1547), seventh session: Decree on the sacraments, Canon XII. https://www.papalencyclicals.net/councils/trent/seventh-session.htm
- As mentioned earlier, the fact that we are only writing about one aspect of this complex topic here does not mean that we agree with Catholic teachings on the sacraments, priesthood, and hierarchy. (We address these in detail in other articles.)