שֵׁ֥ם הָֽאֶחָ֖ד פִּישׁ֑וֹן ה֣וּא הַסֹּבֵ֗ב אֵ֚ת כָּל־אֶ֣רֶץ הַֽחֲוִילָ֔ה אֲשֶׁר־שָׁ֖ם הַזָּהָֽב׃
The name of the first is Pishon; that is it which compasseth the whole land of Havilah, where there is gold;
Read Jewish philosophical commentary on Genesis 2:11: and classical philosophical sources.