ZEAL. Love in action. The strong emotion of spirit, based on deep affection, that seeks to obtain what is loved or to remove what stands in the way. In religious terms, zeal is manifested by an impelling desire to advance the Kingdom of Christ, sanctify souls, and advance the glory of God by making him better known and loved, and thus more faithfully served. (Etym. Latin zelus, eagerness; from Greek zēlos.)