The name of the first one is Pishon it winds through the entire land of Havilah, where there is gold.

Cush's descendants included Seba, Havilah, Sabtah, Raamah, and Sabteca. Raamah's descendants included Sheba and Dedan.

Ophir, Havilah, and Jobab. All these were Joktan's descendants.

His descendants settled from Havilah to Shur (that's near Egypt), all the way to Assyria, in defiance of all of his relatives.