In the Bible, when this word is used, it is not describing one nation or ethnic group, rather the term gentile refers to anyone who is not of Jewish descent. Gentile would also broadly describe those who do not believe in God. Where Does the Bible Talk about Gentiles? The concept of Gentiles is found in the Old Testament.
Resources Encyclopedia of The Bible G Gentiles GENTILES gĕn’ tīlz ( גּﯴיִֽם, LXX ἔθνη; Vulg., Gentiles, Gentes ). The Heb. is derived from an Akkad. loan word meaning a “gang” or “group,” such as workmen.
When we understand gentiles to mean those who reject the promise and message of Jesus Christ, then yes, gentiles still exist. There are people that, just as Paul described them, have hardened their hearts and live for themselves, rejecting the message of hope and salvation in Jesus.
As a term used to describe non-members of a religious/ethnic group, gentile is sometimes compared to words used to describe the "outgroup" in other cultures (see List of terms for ethnic out-groups ).