Contradiction with Leviticus 19:12
This verse in Leviticus instructs people to not swear falsely, but does not explicitly forbid swearing by one’s own head, unlike Matthew 5:36 which discourages swearing oaths at all.
Leviticus 19:12: And ye shall not swear by my name falsely, neither shalt thou profane the name of thy God: I [am] the LORD.
Contradiction with Numbers 30:2
This verse emphasizes the importance of fulfilling oaths to the Lord, which suggests that making oaths is permissible, whereas Matthew 5:36 discourages swearing oaths.
Numbers 30:2: If a man vow a vow unto the LORD, or swear an oath to bind his soul with a bond; he shall not break his word, he shall do according to all that proceedeth out of his mouth. [break: Heb. profane]
Contradiction with Hebrews 6:16
This verse acknowledges that people swear by something greater than themselves for confirmation, suggesting it’s a common and accepted practice, while Matthew 5:36 advises against swearing oaths altogether.
Hebrews 6:16: For men verily swear by the greater: and an oath for confirmation [is] to them an end of all strife.
Contradiction with James 5:12
While this verse reiterates not to swear, it focuses on avoiding swearing by heaven or earth, but does not specifically mention one's own head as in Matthew 5:36, thus suggesting a different focus.
James 5:12: But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and [your] nay, nay; lest ye fall into condemnation.
Paradox #1
One potential contradiction in Matthew 5:36 could be with the practice of making oaths. In this verse, the guidance is to avoid swearing oaths by things over which one has no control, as a person's control is limited. However, in other parts of the Bible, people, including God, are depicted as making oaths. This could seem inconsistent with the directive in this verse.
Paradox #2
The contradiction in Matthew 5:36 is the idea that humans cannot change the color of their hair. Today, we know that people can change their hair color using chemical dyes.