What Does the Bible Say About Swearing to God?

Written By Mary Carter

Mary holds a degree in theology and she has a deep understanding of biblical texts. She works as an elementary school teacher in Alabama.

The Bible cautions against swearing oaths to God lightly or carelessly. In the Old Testament, making oaths in God’s name was a serious matter, bound by strict rules. However, in the New Testament, Jesus advises against swearing oaths altogether, emphasizing simplicity and honesty in speech. He teaches that one’s word should be sufficient without needing to swear by heaven or earth. This teaching is echoed by James, who instructs believers to simply say ‘Yes’ or ‘No,’ warning that anything more comes from evil. The emphasis is on the importance of truthfulness and integrity in communication, rather than relying on oaths to prove one’s honesty. The underlying message is that God values straightforward, truthful speech, and taking oaths lightly can be a form of disrespect to God’s name and character.

Wondering what the Bible says about swearing to God? It’s a topic with deep ethical implications. Let’s explore the biblical stance on making oaths and promises.

What Does the Bible Say About Swearing to God?

The Bible’s perspective on swearing to God is nuanced, reflecting a shift from the Old Testament to the New Testament. While the Old Testament contains laws about oath-taking, the New Testament presents a new approach, emphasizing honesty and integrity without the need for oaths.

In the Old Testament, oaths in the name of God were not prohibited and were, in fact, quite common. These oaths were seen as binding and serious, a way to confirm a promise or a statement. The seriousness with which such oaths were viewed is evident in the commandment against taking God’s name in vain, which includes frivolous or deceitful use of God’s name in oaths.

However, Jesus introduces a change in this practice. In the Sermon on the Mount, He instructs His followers not to swear at all, either by heaven, earth, or any other oath. Instead, He advocates for simple, straightforward communication – let your ‘Yes’ be ‘Yes,’ and your ‘No,’ ‘No.’ This teaching emphasizes the importance of being truthful and trustworthy in speech without needing to invoke God’s name as a guarantee of one’s sincerity.

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James, in his epistle, reiterates this teaching. He discourages believers from swearing oaths, again emphasizing straightforward speech. The rationale behind this instruction is that one should live and speak in such a way that their words are reliable and credible on their own.

The New Testament approach to swearing to God reflects a broader ethical teaching about honesty and integrity. It suggests that one’s character and conduct should be enough to validate their words. This perspective elevates the importance of truthfulness and diminishes reliance on oaths, especially those that casually or insincerely invoke God’s name.

In summary, the Bible presents a progression from accepting oaths in God’s name to encouraging plain and truthful speech without them. This shift emphasizes the importance of integrity and authenticity in communication, reflecting God’s desire for His followers to be people of truth.

Bible Verses About Swearing to God

  1. Matthew 5:33-37: “Again, you have heard that it was said to the people long ago, ‘Do not break your oath, but fulfill to the Lord the vows you have made.’ But I tell you, do not swear an oath at all… All you need to say is simply ‘Yes’ or ‘No’; anything beyond this comes from the evil one.” Jesus teaches against swearing oaths.
  2. James 5:12: “Above all, my brothers and sisters, do not swear—not by heaven or by earth or by anything else. All you need to say is a simple ‘Yes’ or ‘No.’ Otherwise, you will be condemned.” James echoes Jesus’ teaching, emphasizing simplicity and honesty in speech.
  3. Exodus 20:7: “You shall not misuse the name of the Lord your God, for the Lord will not hold anyone guiltless who misuses his name.” This commandment in the Old Testament highlights the seriousness of using God’s name, including in oaths.
  4. Leviticus 19:12: “Do not swear falsely by my name and so profane the name of your God. I am the Lord.” This verse warns against false swearing and the profanation of God’s name.
  5. Deuteronomy 23:21-23: “If you make a vow to the Lord your God, do not be slow to pay it, for the Lord your God will certainly demand it of you and you will be guilty of sin.” This passage emphasizes the seriousness of fulfilling vows made to God.
  6. Numbers 30:2: “When a man makes a vow to the Lord or takes an oath to obligate himself by a pledge, he must not break his word but must do everything he said.” This verse underscores the importance of keeping one’s word, especially in vows made to God.
  7. Ecclesiastes 5:4-5: “When you make a vow to God, do not delay to fulfill it. He has no pleasure in fools; fulfill your vow. It is better not to make a vow than to make one and not fulfill it.” The Preacher in Ecclesiastes warns about the danger of making vows rashly.
  8. Proverbs 12:22: “The Lord detests lying lips, but he delights in people who are trustworthy.” This proverb emphasizes the value God places on truthfulness, which is relevant to the issue of making oaths.
  9. Jeremiah 4:2: “And if in a truthful, just and righteous way you swear, ‘As surely as the Lord lives,’ then the nations will be blessed by him and in him they will glory.” This verse reflects the condition of swearing oaths in truth and righteousness.
  10. Psalm 15:4: “…who keeps an oath even when it hurts, and does not change their mind;” This psalm describes the attributes of a person who dwells in God’s sanctuary, including keeping oaths even when difficult.
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The Bible’s teachings on swearing to God present a clear shift from the Old Testament to the New Testament. While the Old Testament acknowledges the practice of making oaths in God’s name, emphasizing their seriousness and the necessity of fulfilling them, the New Testament urges a move towards simplicity and integrity in speech. Jesus and James advocate for straightforward communication, where one’s word is trustworthy without the need for oaths. This approach underscores the value of honesty and the importance of not using God’s name lightly or insincerely. It reflects a deeper principle that our words should reflect our heart’s truth and our commitment to live by the principles of honesty and integrity that God values. In essence, the Bible encourages us to be people whose words are reliable and true, upholding the sanctity of our speech and our promises without the need for swearing oaths.