Many religions include an exhortation to "do unto others as you would have done unto you" or some similar form of words. This exhortation is also a fundamental part of being a Humanist. This common theme from so many different cultures and religions must surely imply that it is essentially an idea created by humans, and not something passed down by "God"?
Examples of the ‘Golden Rule’ from around the world (Courtesy of BHA)
"He should treat all beings as he himself should be treated. The essence of right conduct is not to injure anyone." (JAINISM -from The Suta-Kritanga, about 550 BCE*)
"Do not do to others what you would not like for yourself."
(CONFUCIANISM - from The Analects of Confucius, about 500 BCE)
"I will act towards others exactly as I would act towards myself."
(BUDDHISM - from The Siglo-Vada Sutta, about 500 BCE)
"This is the sum of duty: Do nothing to others Which, if done to you, could cause you pain." (HINDUISM - from The Mahabharata, about 150 BCE)
"What you would avoid suffering yourself, seek not to impose on others." (ANCIENT GREECE - Epictetus, the Greek philosopher, about 90CE*)
"Love your neighbour as yourself." (JUDAISM / CHRISTIANITY - Leviticus 19, in The Torah, about 400 BCE, quoted by Jesus in Matthew 22 and Mark 12, 1st Century CE)
"What is harmful to yourself do not do to your fellow men. That is the whole of the law…" (JUDAISM - from Hillel: The Talmud, about 100 CE)
"None of you truly believes, until he wishes for his brothers what he wishes for himself." (ISLAM - a saying of The Prophet Muhammad, 7th Century CE)
"As you think of yourself, so think of others." (SIKHISM - from Guru Granth Sahib, 1604 CE)
One should be "contented with so much liberty against other men, as he would allow against himself." (GREAT BRITAIN - Thomas Hobbes, English philosopher, 1588-1679 CE)