The song's title is a reference to the term "Jesus freak," which is often used in a derogatory way to describe Christians. However, the song reclaims the term and uses it as a badge of honor. The lyrics state that the protagonist is "not ashamed to be a Jesus freak," and that he is "proud to serve" God.
The song's chorus repeats the phrase "I am a Jesus freak," and this phrase has become a popular slogan among Christians. The song has also been used as an anthem for Christian missions, and it has been translated into many different languages.
Overall, "Jesus Freak" is a powerful song that celebrates the Christian faith and encourages Christians to be bold in their witness for Christ.