For the Tanya Stephens album, see Infallible (album).

Infallibility, from Latin origin ('in', not + 'fallere', to deceive), is a term with a variety of meanings related to knowing truth with certainty.

In common speech

When a statement, teaching, or book is called 'infallible', this can mean any of the following:

  1. It is something that can't be proven false.
  2. It is something on which can be safely relied.
  3. It is something completely trustworthy and sure.

When a person is called 'infallible', this can mean any of the following:

  1. Some (or all) statements or teachings made by this person can be relied on to be certainly true.
  2. This person always makes good and moral choices, and his actions may never be considered immoral or evil.
  3. This person is always right, and never wrong or incorrect.

However, definitions of 'infallible' differ widely. In common speech, 'infallibility' can refer to a person (or a group of persons), to an act of teaching by these persons, or to the information being taught.

Furthermore, infallibility can refer to the both 'absence of error' or to the 'inability to err'. Although these definitions are similar, they are philosophically distinct; it is theoretically possible for a person to live their entire life without erring even though they had the ability (and potential) to do that. A person who never commits an immoral act or speaks a false sentence by choice would thus qualify for 'absence of error' without being qualified for 'inability to err'.

Infallibility is sometimes used to refer to someone's ability to 'learn' something with certainty. For example, a careful researcher might study a hundred books, each of which contains a few errors, and after carefully judging the statements in these books might deduce the complete, error-free truth. This is referred to as 'learning infallibly' or 'knowing infallibly'. However, this meaning is rarely used.

In philosophy

Epistemology, a branch of philosophy, is concerned with the question of what, if anything, humans can know. The answer to the issue of if a human can be infallible or not depends on which philosophical school is receiving the question.

  • Advocates of philosophical skepticism claim that man cannot know anything with certainty, much less be infallible. Fallibilists hold a similar position, but claim that what is true today could be wrong tomorrow.[dubious ]
  • Advocates of subjectivism claim that there is no objective reality or truth, and therefore anyone can be considered infallible, since whatever is within a person's consciousness is considered the real and the true.
  • Advocates of reason and rationality claim that man can gain certainty of knowledge, but that no man can arrive at certainty by substituting the percepts of reality for the arbitrary say-so of another man.[dubious ]

In theology


A standard work, "The Oxford Dictionary of the Christian Church",[1] defines infallibility as 'Inability to err in teaching revealed truth'. Roman Catholic and Eastern Orthodox Church theology claim that the Church is infallible, but disagree as to where infallibility exists, whether in doctrines, scripture, or church authorities: see Infallibility of the Church, Papal infallibility, Biblical infallibility and Biblical inerrancy. In contrast, Protestant and non-denominational Christian churches believe that the Christian Church is indeed fallible—as evidenced by the requirement of Christ's sacrifice on the cross to pay for the sins of the world, including those of His Church—and that only God's word in Scripture is infallible. They also completely reject the Roman Catholic claim regarding Papal Infallibility, citing not just scriptural reasons, but also the many times popes have contradicted each other and the history of mistakes committed by many popes throughout Roman Catholic Church history. However, because of the complexity in defining infallibility, some Protestant and non-denominational views are consistent with confusion between infallibility and impeccability, as if the Pope were immune from sin, but that is not the Roman Catholic Church's doctrine.

Semantic notes

In Roman Catholic theology, only the actual act of teaching may properly be called "infallible". For example, according to Roman Catholic dogma, Pope Pius IX's teaching regarding the Immaculate Conception was infallible; it is conceptually incorrect to say or to write "the Immaculate Conception is infallible".

According to the First Vatican Council (1869–71) and as reaffirmed at Vatican II (1962–1965) the Pope is infallible when speaking ex cathedra on matters of faith and morals.

Infallibility does obviously not refer to the inability to sin (impeccability), or to the personal holiness of a person, though Protestants may sometimes accuse the popes of sins in combatting the doctrine of their (occasional) infallibility.


The notion of infallibility in Judaism as it relates to the Tannaim and Amaraim of the Talmud, as well as the Rishonim, Achronim and modern day Gedolim is one surrounded by debate.

Some who reject infallibility cite the Talmud, Pesachim 94b:

The sages of Israel say: "The sphere (Earth) remains fixed and the constellations revolve," while the sages of the nations say: "The sphere revolves and the constellations remain fixed."...the sages of Israel say: "during the day the sun moves below the canopy (sky) and at night above the canopy," while the sages of the nations say: "during the day the sun moves below the canopy and at night below the ground." Rebbi said: "Their words seem more correct than ours..."

The words of the Mishna are commented on by numerous commentators, and Yehuda Levi argues that evidence mounts that the Geonim and the Rambam perceived that the sages of the Talmud "erred in a matter of astronomy.[2] The Rambam wrote that the great sages are not expected to advocate positions perfectly in-line with modern science because they were "scholars of that generation," often basing their assessments of what "they learned from the scholars of the era."[3]

In the Hassidic tradition, however, infallibility is taught in the Chabad tradition in connection with a Rebbe.[4]


Universal teachings

Islam teaches that the teachings and guidance by the prophets with regard to bringing the message of the One true God was infallible. The Quran teaches that making mistakes is a part of human nature. It teaches that a person will be judged on what sin they did in this life and the most important thing to God is the intention that one holds when carrying out any act, as well as fairness and justice. This means that although humans make mistakes and commit sins, it is what they do what matters since humans are not perfect. Islam also teaches that the Qur'an is an infallible text, one that is certainly true and is something that can be safely relied on within you.

Additional Shi'a teachings

Main article: Ismah

In Shi'a theology, the belief is that the Ahl al-Bayt, including Muhammad, his daughter Fatima Zahra and Shi'a Imams are all infallible and do not make mistakes. It is believed that they are infallible in the sense that all statements or teachings made by them can be relied on to be certainly true, that all information believed by themselves is true, and that they have complete knowledge about right and wrong and never intend to disobey God, in a sense, perfect creation. It is also held by Shi'as that there were 124,000 Prophets, beginning with Adam and ending with Muhammad - with all, including the latter, being infallible in the same sense as the Ahl al-Bayt.[5][6]

Vaishnavism (Hinduism)

In the Bhagavad Gita, Krishna explains to Arjuna (Bg 15.16 to 15.20) "There are two classes of beings, the fallible and the infallible. In the material world every living entity is fallible, and in the spiritual world every living entity is called infallible. Besides these two, there is the greatest living personality, the Supreme Soul, the imperishable Lord Himself, who has entered the three worlds and is maintaining them. Because I am transcendental, beyond both the fallible and the infallible, and because I am the greatest, I am celebrated both in the world and in the Vedas as that Supreme Person. Whoever knows Me as the Supreme Personality of Godhead, without doubting, is the knower of everything. He therefore engages himself in full devotional service to Me, O son of Bharata. This is the most confidential part of the Vedic scriptures, O sinless one, and it is disclosed now by Me. Whoever understands this will become wise, and his endeavors will know perfection."[7]


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