What is the origin of the phrase, "When Greek meets Greek, then comes the tug of war"?

This is what I found. This is a play by Nathaniel Lee, "Alexander the Great's Queen of Competitors".

... In the forgotten tragedy of Nathaniel Lee, "One of the rival of Alexander the Great" survived, and the writing wrote: It aims to show that Greeks are keeping their country very uniformly.

If thousands of people are asked to quote them without exception, saying "Greeks encounter Greek language" and saying they are asked to explain the meaning, they say Let's see. There is no quarter when stubborn soldiers, when a Greek person met other Greeks. This is a fight against death. This is undoubtedly a general view of the meaning of this sentence. However, except for the forgotten tragedy of Nathaniel Lee "The Queen of Alexander, the opponent of the emperor", there is almost no cause for error. "When the Greeks joined the Greeks it was a tug of war." It aims to show that the Greeks are united and protecting their country.

Greek love is a term used by classicalists to explain the main homosexuality, customs, customs and attitudes of ancient Greeks. It is often used as a euphemism of homosexuality and pedestals. This sentence is a product of the great influence of classical Greek culture on historical thought and its influence on art and various intellectual movements. : West, 91-92 "Greek" - a precious historical memory of the past as romanticization and idealization of time and culture, not only is the love between men tolerated but also as the height of homosexuality actually Ideal to be expressed. ... If the homosexuals' tolerance and perception occurred in such a worshiped and imitated culture in the 18th and 19th centuries, it would replicate the ancient homes of modern non-homosexuals Can not you do? 624