Who was William of Ockham/Occam?

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TL;DR:

William of Ockham was a 14th-century Franciscan philosopher and theologian best known for “Occam’s Razor,” the principle that the simplest explanation is often the best. Ockham boldly challenged church corruption, emphasized God’s supreme authority over human reason, and trusted Scripture as the ultimate source of truth.

from the old testament

  • William of Ockham is not mentioned in the Old Testament, but there are Bible verses that are applicable to his life. For example, Ockham embraced God's authority over reason, trusting God even when human logic failed (Proverbs 3:5–6).
  • Isaiah 55:8–9 affirms Ockham’s view that God is not bound by the laws of logic He created.
  • Ockham’s stand against ecclesiastical corruption echoes Micah 6:8’s call to justice and humility.
  • Psalm 119:160 reflects Ockham’s reliance on Scripture as ultimate truth over ecclesiastical tradition or philosophical proof.

from the new testament

  • William of Ockham is not mentioned in the New Testament, but there are Bible verses that are applicable to his life. For example, 1 Corinthians 1:25 supports Ockham’s belief that God’s actions transcend even the sharpest human reasoning.
  • Matthew 6:19–21 reinforces Ockham’s Franciscan commitment to poverty and spirituality over material wealth.
  • Acts 5:29 captures Ockham’s bold stand against papal authority when it contradicts biblical truth.
  • 2 Timothy 3:16–17 speaks to his high view of Scripture as the guide for morality and theology.
  • Romans 11:33 reflects Ockham’s willingness to accept the mystery of God beyond philosophical explanation.

implications for today

The philosophical construct "Occam's Razor" is fairly well known, but few people know anything about its originator. The principle states that if there are several possible hypotheses, the simplest one is probably correct. There's no need to complicate an explanation beyond what is necessary. The sentiment wasn't original to Ockham, however. In the second century AD, Ptolemy said, "We consider it a good principle to explain the phenomena by the simplest hypothesis possible."

William of Ockham (also spelled Occam) would have known this. Born in Oak Hamlet in England around 1287, he went to London to study logic and natural philosophy at Greyfriars, a Franciscan friary. From there, he went to Oxford to study theology, but left before he finished the program and returned to Greyfriars. While there, he wrote about philosophy and theology, including a critique of theologian Peter Lombard's 1150 work Sentences. His commentary was so ill-received he was called to defend his beliefs at the papal court at Avignon. The charges were eventually dropped, and he was called on to investigate Pope John XXII for heresy. The Franciscan brothers (of whom Ockham was one) believed God's servants should follow the examples of Jesus and His apostles, keeping a vow of poverty and owning no individual property. Pope John disagreed, believing God's servants had a right to own as much property as they wished. Ockham found John guilty of deliberate heresy in the face of biblical proof and was forced to flee with John's other accusers to Italy and seek the protection of the Holy Roman Emperor.

The Emperor, Louis IV of Bavaria, was glad to have such an elegant scholar who was also so critical of the pope, and Ockham wrote an apologetic as to why the emperor, and not the pope, should rule the empire. Although Ockham was excommunicated for leaving Avignon, he was reinstated by Pope Innocent VI twelve years after his death.

Ockham was a champion of reason and logic, and used them extensively in his writings of philosophy, knowledge, and politics. He did not, however, extend their usage into theology. The earlier Christian philosophers, such as Thomas Aquinas, believed everything could be proven by reason, including the existence of God, the incarnation of Jesus, and the need for the crucifixion. Ockham followed the lead of John Duns Scotus and other fideists, however, and believed the God Who created logic and reason was not bound by them. As the Creator, God had the authority and certainly the power to act outside of natural law. This extended to morality and ethics. In regards to ethics, Ockham was a proponent of the Divine Command Theory which asserts a rule is good if God commands it. God's judgment alone determines morality. The fact that God's rules are beneficial for us is because God acts not only in power and authority but also in love.

In his scholarly way, William of Ockham championed beliefs that we live with today, such as separation between church and state, freedom of speech, and papal fallibility. But his, and other philosophers like him, love of philosophical subtleties and precise use of language alienated others who wished to concentrate on the simplicity of the gospel. In reaction, Thomas á Kempis wrote, "Were you to memorize the entire Bible and all the sayings of the philosophers, what good would this be for you without the love of God and without grace?" (The Imitation of Christ).

But Ockham's line of thinking showed a great amount of faith and trust in God. Unlike today, when lack of scientific proof is a common excuse for denying the existence of God, Ockham and his compatriots, who loved to dissect the minutiae of any subject, left God to Himself. They were happy to accept God's revelation through the Scriptures and the leading of the Holy Spirit, and equally content to know that no matter how they analyzed God, there would always be questions for which they would find no answer.

Quotes by William of Ockham:

“Entities should not be multiplied beyond necessity.”

“Nothing ought to be posited without a reason given, unless it is self-evident, or known by experience, or proved by the authority of Sacred Scripture.”

“God's existence cannot be deduced by reason alone.”

“God can do everything that does not imply a contradiction.”

“A plurality is not to be posited without necessity, but for everything that is, there is a reason why it is rather than not.”

understand

  • William of Ockham is known for “Occam’s Razor,” favoring simple explanations.
  • Ockham challenged church authority and upheld biblical truth and poverty.
  • Ockham believed God’s will defines morality and surpasses human logic.

reflect

  • In what areas of your life are you tempted to rely on human logic instead of trusting God's authority and Word?
  • How do you respond when standing for biblical truth might cost you comfort, reputation, or approval?
  • How do you respond to the incomprehensibility of God, and how do you follow Him when you don’t understand His ways?

engage

  • How does Ockham’s belief that God is not bound by human logic challenge modern views of faith, reason, and theology?
  • What is the relationship between logic and faith?
  • How should the church today balance intellectual exploration with the simplicity of the gospel?