Adam Clarke on Hosea 9:17

My God will cast them away - Here the prophet seems to apologize for the severity of these denunciations; and to vindicate the Divine justice, from which they proceeded. It is: -

Because they did not hearken unto him - That "my God," the fountain of mercy and kindness, "will cast them away."

And they shall be wanderers among the nations - And where they have wandered to, who can tell? and in what nations to be found, no man knows. Wanderers they are; and perhaps even now unknown to themselves. Some have thought they have found them in one country; some, in another; and a very pious writer, in a book entitled, The Star in the West, thinks he has found their descendants in the American Indians; among whom he has discovered many customs, apparently the same with those of the ancient Jews, and commanded in the Law. He even thinks that the word Je-ho-vah is found in their solemn festal cry, Ye-ho-wa-he. If they be this long lost people, they are utterly unknown to themselves; their origin being lost in a very remote antiquity.