A noun meaning zealot, or one who is zealous or passionate about something. It describes a person characterized by ardent devotion to a cause, person, or principle. In the New Testament it serves both as a title for one of the twelve apostles (Simon the Zealot) and as a descriptor of passionate spiritual commitment.
Simon the Zealot among the twelve is a remarkable detail — a man from a movement known for violent resistance to Rome, called alongside Matthew the tax collector who served Rome. This radical diversity within the apostolic band is not accidental: the kingdom of God dismantles human political categories. Paul describes himself as formerly a zealot for his ancestral traditions — a zeal that led him to persecute the church. The same intensity, redirected by the risen Christ, made him the greatest missionary in history. Zeal is not the problem; it must be knowledgeable (Romans 10:2) and rightly directed.