διάγνωσις

judicial examination, decision

Definition

The Greek word διάγνωσις (diagnōsis) refers to a formal judicial examination or a decisive legal determination. In its biblical context, it specifically denotes the official process of a Roman authority hearing a case and reaching a verdict. The term implies a thorough investigation leading to a final decision. Its only New Testament occurrence in Acts 25:21 illustrates this precise legal sense, where Festus speaks of a 'hearing before the emperor' (τὴν τοῦ Σεβαστοῦ διάγνωσιν).

Biblical Usage

Διάγνωσις is used only once in the New Testament, in Acts 25:21. It appears in a formal Roman legal context where Governor Festus explains to King Agrippa that he ordered Paul to be held for a judicial examination (διάγνωσις) by Caesar Augustus. The usage is strictly technical, describing the transfer of Paul's case to the highest imperial court for a definitive legal decision.

Etymology

Derived from the preposition διά (dia, meaning 'through' or 'across') combined with the root of γνῶσις (gnōsis, meaning 'knowledge'). It literally means 'a knowing through' or 'a thorough examination.' This compound formation perfectly captures the word's sense of a penetrating inquiry to reach a conclusion, a concept that passed into English as 'diagnosis.'

Semantic Range

While not a central theological term, διάγνωσις is significant in the narrative of Acts as it highlights God's sovereign hand in Paul's ministry. The appeal to Caesar's διάγνωσις was a legal right that providentially propelled Paul to Rome, fulfilling the Lord's promise that he would testify there (Acts 23:11). It underscores how secular legal structures were used to advance the gospel to the heart of the empire.

In the 1st-century Roman world, διάγνωσις was a specific legal term for an official hearing or trial before a magistrate or the emperor himself. It was part of the formal judicial apparatus of the Roman Empire, granting citizens like Paul the right to a definitive verdict from the highest authority. This differs from a modern 'diagnosis,' which is primarily medical; its ancient sense was exclusively judicial and authoritative.

κρίσις (krisis, G2920) — a broader term for judgment or decision, often with a moral or eschatological weight, not strictly a formal legal hearing. ἀνακρίνω (anakrinō, G350) — to examine or question closely, focusing on the investigative process rather than the final, official decision.

Word Details

Scripture References