[Netizen]

That would explain him paraphrasing Confucious.

Do not do to others what you do not want them to do to you. Confucianism Analects 15.23 Predates Jesus by about 500 years.

[Ripliancum]

Or Confucius paraphrasing the Lord.

Proverbs 24:29
“Say not, I will do so to him as he hath done to me: I will render to the man according to his work.”

Truth is eternal, and originated with God and His prophets.

[Harmless Teddy Bear]

Except that “Do not do to others what you do not want them to do to you” is not what Jesus taught.

He taught “Do unto others as you would have them do unto you.” A commandment to actively do good rather then to just refrain from doing harm.

[Hootowl]

Not really. Confucious said, “Do not do to others what you would not want done to you.” What Jesus said was completely different, “Do unto others as you would have them do unto you.” Confucious was passive: don’t do anything bad. Jesus was affirmatively active: do good!