Dei (pronounced day, δεῖ) is a Greek verb found under Strong’s Concordance number G1163. The word Dei is an impersonal verb that signifies necessity or obligation. It is derived from the verb δέω (deō), which means “to bind” or “to tie.” The term Dei is commonly used in the New Testament to express something that is necessary, required, or must happen. The sense of obligation conveyed by Dei can pertain to divine will, moral duty, or logical necessity.

Dei is a versatile term that emphasizes the inevitability or necessity of an action or event. In biblical contexts, it often conveys a divine necessity, meaning that something must occur according to God’s plan or purpose. The word can also indicate a moral or ethical obligation, as well as practical or logical necessity. Its usage underscores the importance of certain actions or events in fulfilling divine or moral imperatives.

Scripture References

1. Luke 2:49: “And he said to them, ‘Why were you looking for me? Did you not know that I must (δεῖ, dei) be in my Father’s house?'” In this verse, Dei is used by Jesus to express the necessity of being in the temple, fulfilling His divine mission.
2. John 3:7: “Do not marvel that I said to you, ‘You must (δεῖ, dei) be born again.'” Here, Dei is used to indicate the necessity of spiritual rebirth for entry into the kingdom of God.
3. Acts 4:12: “And there is salvation in no one else, for there is no other name under heaven given among men by which we must (δεῖ, dei) be saved.” In this context, Dei emphasizes the exclusive necessity of salvation through Jesus Christ.

Detailed Description from Lexicons

In BDAG (Bauer, Danker, Arndt, and Gingrich), Dei is defined as “it is necessary” or “one must,” with an emphasis on its use in contexts where something is required or inevitable. BDAG notes that Dei often expresses a divine necessity, indicating that an action or event must take place according to God’s will or plan. The lexicon highlights that Dei is frequently used in the New Testament to stress the importance of fulfilling divine purposes or adhering to moral obligations.

Thayer’s Lexicon describes Dei as “it is necessary” or “one must,” particularly in the context of divine will or moral duty. Thayer’s points out that Dei is an impersonal verb that often conveys a strong sense of obligation or requirement. The lexicon emphasizes that in biblical usage, Dei is closely associated with the fulfillment of God’s purposes, as well as the moral imperatives that guide human behavior.

The LSJ (Liddell, Scott, Jones) lexicon provides a broader context for Dei, noting its use in classical Greek to express necessity or inevitability. LSJ emphasizes that Dei was commonly used in philosophical and rhetorical contexts to indicate logical necessity or the natural order of things. The lexicon also discusses the use of Dei in legal and ethical discourse, where it denotes obligations or duties that must be fulfilled.

Strong’s Exhaustive Concordance lists Dei as “it is necessary” or “one must,” focusing on its role in expressing necessity or obligation. The concordance highlights that Dei is often used in the New Testament to emphasize actions or events that are essential for fulfilling God’s will or adhering to moral principles.

Usage in Classical Greek Literature

Dei appears frequently in classical Greek literature, often in contexts related to necessity, obligation, or logical inevitability.

1. Plato in his philosophical dialogues uses Dei to discuss the necessity of certain actions or beliefs within the framework of ethics and logic. For example, in “The Republic,” Dei is used to express the logical necessity of justice for the well-being of the state.
2. Aristotle in his works on ethics and politics uses Dei to emphasize the importance of certain virtues or actions that are necessary for achieving the good life. In “Nicomachean Ethics,” Dei is employed to articulate the moral imperatives that guide human behavior.
3. Herodotus in “The Histories” uses Dei to describe events that are inevitable or fated to happen, often in the context of divine will or the natural order of things. This usage reflects the broader Greek understanding of necessity as both a logical and a cosmic principle.

Summary

Dei (pronounced day, δεῖ) is a Greek verb meaning “it is necessary” or “one must.” Derived from the verb δέω (deō), meaning “to bind,” Dei is used in the New Testament to express necessity, obligation, or inevitability. The term often conveys a divine necessity, indicating that certain actions or events must occur according to God’s plan. Lexicons such as BDAG, Thayer’s, and LSJ emphasize the importance of Dei in expressing both moral and logical necessity, as well as the fulfillment of divine purposes. In classical Greek literature, Dei is frequently used to denote necessity in philosophical, ethical, and historical contexts, reflecting its significance in articulating essential truths and obligations. The word Dei underscores the importance of actions or events that are required to fulfill divine, moral, or logical imperatives.