In fact , as far as we know , the Israelites were the only people who were using a seven - day week prior to Christianity .
For instance , seven days , seven heavens and seven earths , are found in the divine religions .
As far as we know , the Israelites were the only people who were using a seven - day week prior to Christianity .
For instance , seven days , seven heavens and seven earths , are found in the divine religions .