Definition and Spelling*  
*Yahweh* is the personal name of God revealed in the Hebrew Bible. It is written with four Hebrew consonants: *יהוה*, transliterated as *YHWH*. This four-letter form is called the _Tetragrammaton_. 

The exact vowels are uncertain because ancient Hebrew was written without vowels and the name was not pronounced aloud in later Jewish tradition. *Yahweh* is the reconstruction most widely accepted by modern scholars based on early Greek transliterations and the shortened form _Yah_ found in names like _Hallelujah_
Etymology and Literal Meaning*  
YHWH derives from the Hebrew verbal root *ה.י.ה _hayah*_, meaning “to be, to exist, to become, to happen.” 

In Exodus 3:14, God responds to Moses with *אֶהְיֶה אֲשֶׁר אֶהְיֶה* _Ehyeh asher Ehyeh_, usually rendered “I AM WHO I AM” or “I WILL BE WHO I WILL BE.” Yahweh is the 3rd person form of this verb: “He is” or “He causes to be.” 

So the name conveys:
- *Self-existence*: God exists necessarily, independent of anything else.
- *Dynamic presence*: God is actively present and involved.
- *Faithfulness*: God “will be there” for His people in the future.

 Biblical Usage and Context*  
Yahweh functions as a personal name, distinct from titles like _El_ “God,” _Elohim_ “God/Gods,” _El Shaddai_ “God Almighty,” and _Adonai_ “Lord.”

*Key occurrences:*
- *Exodus 3:14-15*: God reveals the name to Moses at the burning bush and declares it His name “forever.”
- *Exodus 6:3*: God tells Moses that to Abraham, Isaac, and Jacob He appeared as _El Shaddai_, but by His name Yahweh He was not known to them in full action.
- *Throughout the Torah and Prophets*: Yahweh is used in contexts of covenant, redemption, law-giving, and judgment. 
- *Psalms and Poetry*: The shortened form _Yah_ appears in _Hallelujah_ = “Praise Yah.”

In most English Bibles, YHWH is translated as *LORD* in small capitals to distinguish it from _Adonai_ “Lord.”

 Theological Significance*  
The name Yahweh carries several theological emphases in the Hebrew Bible:
Aspect Explanation
**Monotheism** Yahweh is presented as the one God, with no other gods comparable to Him. Deut 6:4
**Covenant** The name is tied to God’s covenant with Israel. It signals a relational God who commits to His people.
**Transcendence and Immanence** Yahweh is beyond the universe yet present with Israel. He is not a distant force.
**Holiness** The name is treated as sacred. Lev 24:16 prescribes death for blaspheming the name.
**Historical Action** Yahweh acts in history - in the Exodus, giving of the Law, exile, and return.

Pronunciation and Jewish Tradition*  
After the Babylonian exile, Jewish practice developed a prohibition against pronouncing the name outside the Temple. When reading Scripture, scribes and readers substituted *Adonai* “Lord.” 

The Masoretes later added the vowels of _Adonai_ to YHWH as a reminder, producing the form _Yehowah_. When transliterated into Latin and English, this became *Jehovah*. 

The name was pronounced only by the High Priest once a year on Yom Kippur in the Holy of Holies. After 70 CE, with the destruction of the Temple, the pronunciation was largely lost.

Distinction from Other Divine Names*  
- *Elohim*: A more generic term for God or gods, used in creation accounts like Gen 1:1.
- *El Shaddai*: Emphasizes God’s power and sufficiency.
- *Yahweh*: Emphasizes God’s personal, covenantal, self-existent nature.

The Priestly source of the Pentateuch tends to use _Elohim_ in Gen 1, while the Yahwist source uses _Yahweh_ in Gen 2-3, showing different theological emphases.

Legacy in Later Traditions*  
- *Judaism*: Continues to avoid pronouncing the name, using _Adonai_, _HaShem_ “The Name,” or _Elohim_ instead.
- *Christianity*: The New Testament uses _Kyrios_ “Lord” to translate YHWH when quoting the Old Testament. The name is central to Christological interpretations, especially in John’s “I AM” sayings.
- *Scholarship*: YHWH is studied as a key to understanding Israelite religion and its development from Canaanite context.