Do Jews and Christians embrace Islam out of their contentment with it, or through divine guidance, especially since Allah mentioned in His Glorious Book: "And never will the Jews or the Christians approve of you until you follow their religion"?

The verse: "And never will the Jews nor the Christians approve of you until you follow their religion" means that the Jews and Christians—as long as they remain in their disbelief—will never approve of the Prophet until he follows their religion. This does not mean that none of them will embrace Islam. Whoever among them embraces Islam and accepts it as their religion is not included in the meaning of the verse.