Adonai – Lord and Master
What This Name Means
There is a moment in Isaiah 6 that stops you cold.
The prophet is in the temple. The year is 740 BC, the year King Uzziah died, a year of political uncertainty and national anxiety. And in that moment, Isaiah sees something. He sees the Lord, high and exalted, seated on a throne, his robe filling the temple. Seraphim are above him, covering their faces and their feet, calling to one another: "Holy, holy, holy is the LORD Almighty; the whole earth is full of his glory."
The word Isaiah uses in that opening line is not Yahweh. It is Adonai. "I saw Adonai, high and lifted up."
Adonai means Lord. Master. Sovereign. It is the name that captures not the personal, covenantal intimacy of Yahweh but the absolute authority and sovereign rule of God over everything he has made. If Yahweh answers the question who is this God in relationship to his people, Adonai answers the question who is this God in relation to all things. He is the Master. He is the one to whom all authority belongs.
The Hebrew Root and Its Meaning
Adonai (אֲדֹנָי) is the plural form of adon, meaning lord, master, or owner. In everyday Hebrew usage, adon was used for human masters and rulers, much the way we might use "sir" or "lord" in English. A servant addressed his master as adon. A subject addressed a king as adon.
The plural form Adonai is reserved exclusively for God. Like Elohim, it is a plural that does not indicate multiple beings but carries a sense of fullness and majesty, the plural of excellence. When applied to God, it declares that he is Lord in the most complete and ultimate sense possible. He is not one master among many; he is the Master above all masters.
The name also carries the sense of ownership. An adon owned what was under his authority. When Scripture calls God Adonai, it is affirming that everything belongs to him: the earth, the nations, human history, your life. The Psalmist captures it directly: "The earth is the LORD's, and everything in it" (Psalm 24:1).
One important note on usage: because the name Yahweh was considered too holy to pronounce aloud, Jewish tradition substituted Adonai whenever Yahweh appeared in the text during public reading. This practice is reflected in most English Bible translations, which render Yahweh as LORD (small capitals) and Adonai as Lord (standard capitals). When you see "Lord" without small capitals in most English Bibles, you are reading Adonai.
Key Occurrences in Scripture
Isaiah's Vision: Isaiah 6:1–8
This is the signature Adonai text. Isaiah sees the Lord enthroned, surrounded by seraphim whose sole occupation is declaring his holiness. The vision undoes him. "Woe to me! I am ruined! For I am a man of unclean lips, and I live among a people of unclean lips, and my eyes have seen the King, the LORD Almighty."
The encounter with Adonai is not comfortable. It produces awe, undoing, and a recognition of the vast distance between the creature and the one who rules all things. That distance is then crossed, not by Isaiah climbing up but by a seraph flying down with a coal from the altar. Grace moves from the throne outward. Then comes the question: "Whom shall I send? And who will go for us?" And Isaiah, freshly undone and freshly cleansed, answers: "Here am I. Send me."
The sovereignty of Adonai does not crush the servant. It commissions him.
Abraham's Prayer: Genesis 15:2, 8
Abraham is one of the first figures in Scripture to address God directly as Adonai. In Genesis 15, God has just promised him descendants as numerous as the stars, and Abraham, who is old and childless, asks: "Adonai, how can I know that I will gain possession of it?" He is not being impertinent. He is speaking to God the way a servant speaks to a master he trusts, someone with the authority to make promises and the power to keep them. It is a title of reverence and relationship held together.
Moses at the Red Sea: Exodus 15 and Beyond
Moses uses Adonai throughout his interactions with God, particularly in moments of intercession. In Exodus 4:10, when God calls him to speak before Pharaoh and Moses protests that he is not eloquent, he says: "Pardon your servant, Adonai. I have never been eloquent." The address acknowledges the relationship plainly: Moses is the servant; God is the Master. The Master's call does not depend on the servant's qualifications.
The Psalms
The Psalms use Adonai freely, often in contexts of worship, trust, and lament. Psalm 8 opens with "Adonai, our Lord, how majestic is your name in all the earth!" The name frames a meditation on the grandeur of creation and the astonishing dignity God has given to human beings within it. Psalm 110:1, one of the most quoted Old Testament verses in the New Testament, begins: "Yahweh says to my Adonai: 'Sit at my right hand.'" Two uses of lordship language in a single sentence, and the New Testament will have a great deal to say about both.
Theological Significance
Adonai declares God's absolute sovereignty. He is not a constitutional monarch whose authority is checked by other powers. He is the Master of all things, the one in whom all authority originates. Every human authority, every institution, every power in heaven and on earth exists only because he permits it and within limits he sets.
Adonai defines the posture of the believer. If God is Adonai, then the believer is, by definition, a servant. This is not a diminishment; it is a clarification. The Psalms, the prophets, and the apostles all embrace the title of servant as one of dignity and purpose. Paul opens letter after letter by calling himself a doulos, a bondservant, of Jesus Christ. To serve Adonai is not slavery in the degrading sense; it is the orientation of a life toward its rightful master and thereby toward its truest purpose.
Adonai and Yahweh held together. The great compound Adonai Yahweh, often translated "Sovereign LORD," appears over 300 times in the Old Testament, especially in the prophets. It holds both names in one breath: the sovereign master and the covenant keeper, the one who rules all things and the one who has bound himself in love to his people. Ezekiel uses it constantly. It is one of the most theologically dense phrases in all of Scripture.
Adonai and holiness. The Isaiah 6 vision ties Adonai directly to the holiness of God. His lordship is not raw power; it is holy power, power that is morally perfect, utterly pure, and entirely good. The seraphim do not cry "powerful, powerful, powerful" but "holy, holy, holy." The master of all things is also the holy one of all things.
Adonai in the New Testament
The Greek word Kyrios, Lord, carries both Yahweh and Adonai across the threshold into the New Testament. It is the word the Septuagint uses for both names, and it is the word the New Testament applies to Jesus without hesitation.
Psalm 110:1 becomes one of the most important texts in the New Testament. Jesus himself raises it in his debate with the Pharisees, asking: "If David calls him Lord, how can he be his son?" (Matthew 22:43–45). The question is meant to unsettle a too-small understanding of who the Messiah is. Peter quotes the same psalm on the day of Pentecost, concluding: "Therefore let all Israel be assured of this: God has made this Jesus, whom you crucified, both Lord and Messiah" (Acts 2:36).
The Adonai of Isaiah's vision, high and exalted on the throne, is the same one John identifies as Jesus in John 12:41, after quoting Isaiah 6: "Isaiah said this because he saw Jesus' glory and spoke about him."
The Lord enthroned in the temple is the Lord who entered the temple in human flesh.
What This Name Means for Christian Faith and Practice
To call Jesus Lord is to use the language of Adonai. It is not a polite honorific. It is a declaration of sovereignty, a confession that he has the right to your obedience, your allegiance, and your life.
That is exactly why the early church's simplest and most explosive confession was Kyrios Iesous, Jesus is Lord. In a Roman world full of competing lords, that statement was not religious sentiment. It was a claim about ultimate authority. Caesar called himself lord. The early Christians said there was another one, and he outranked everyone.
Isaiah's response to the vision of Adonai is still the right one. You see him, high and lifted up. You become aware of what you are and what he is. You receive the grace that moves from the throne outward. And then you hear the question: "Whom shall I send?"
And you answer.
Sources
Brown, F., Driver, S. R., & Briggs, C. A. A Hebrew and English Lexicon of the Old Testament. Oxford: Clarendon Press, 1906. Entry: אָדוֹן (adon).
Strong, J. Strong's Exhaustive Concordance of the Bible. Entry: H136 (Adonai); H113 (adon).
Brand, C., Draper, C., & England, A. (Eds.). Holman Illustrated Bible Dictionary. Nashville: Holman Bible Publishers, 2003. Entry: "Lord, Master."
See Also
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