κηρύσσω

The Greek verb κηρύσσω (kērýssō) fundamentally means to act as a κῆρυξ (kēryx), a herald or crier. In the ancient world, a herald was an official messenger who made public proclamations, often on behalf of a king or other authority. The act of κηρύσσω, therefore, implies a public and authoritative declaration, not merely conversation or instruction. The message proclaimed was generally not the herald's own, but that of the sender. This sense of acting as a messenger for a higher authority is central to its usage in the New Testament. The semantic range of κηρύσσω extends from general public announcements to the specific proclamation of the Gospel.

In the New Testament, κηρύσσω is most frequently used to describe the activity of Jesus, John the Baptist, and later the apostles and other evangelists. They "preached" or "proclaimed" the good news of the Kingdom of God, repentance, and the person and work of Jesus Christ. This is not simply teaching or discussion, but a public declaration of truth with an inherent summons to respond. The content of this proclamation is often specified as "the gospel" or "the kingdom of God," emphasizing the divine origin and eternal significance of the message. The authority of the one sending the message (God) invests the herald with their own authority.

The theological weight of κηρύσσω is significant because it describes the primary method by which God’s saving truth is disseminated. The proclamation is a foundational aspect of Christian mission, as faith comes through hearing the message that is authoritatively declared. It emphasizes the active and public nature of sharing the Gospel, indicating that the message is for all to hear and respond to. The concept is closely tied to the idea of the "herald" (κῆρυξ) and "proclamation" (κήρυγμα), underscoring the formal and serious nature of this divinely appointed task.