Revelation 4:4

About the throne were four and twenty seats, or lesser thrones, twenty-four seniors or senators upon them, representing the illustrious saints both of the Old and New Testament, clothed in white garments, in token of their innocence, and crowns of gold, signifying the glory of the heavenly inhabitants. (Witham) --- These four and twenty elders sitting around the throne of God, represent the judgment which the Almighty was about to pass upon the enemies of his Church. Thus in Daniel, when he was about to pronounce sentence against Antiochus Epiphanes, "thrones were placed, and the ancient of days sat,...the judgment sat, and the books were opened." (Daniel vii. 9, 10.) They represent kings and priests who attend on the Sovereign Judge. It appears as if God intended to designate by the number the ancient patriarchs and the twelve apostles, who judge with the Lord, and condemn the injustice of their persecutors. (Calmet)