"Here Am I"
The Posture of the Prophets
Throughout Scripture, when God calls a person to a difficult task, a recurring phrase appears on their lips, not resistance, not negotiation, but simple availability: here am I. This teaching traces that posture through Isaiah's throne room vision and other key callings, showing what it looks like to answer God the way the prophets did, and what it costs, and what it produces.
I. A Vision of Holiness That Undoes a Man
Isaiah's calling begins not with a task but with an overwhelming vision of God's holiness, one that leaves him undone before any assignment is ever given.
Holy, holy, holy, the same threefold cry heard again centuries later around the throne in Revelation four. Before Isaiah can be sent anywhere, he must first see God as he truly is, high and lifted up, filling the temple, surrounded by creatures who cannot stop declaring his holiness.
II. Undone and Unclean
Isaiah's response to this vision is not eagerness to serve but devastating self-awareness. In the presence of true holiness, he sees himself with total clarity for the first time.
Undone. Isaiah does not offer his qualifications, he confesses his unworthiness. This is the necessary first step in any true calling, not confidence in one's own ability, but honest recognition of one's own inadequacy in the presence of a holy God. No one is called to God's service because they were already sufficient. They are called precisely because they were not, and because God intends to supply what they lack.
III. Cleansed Before Sent
God does not leave Isaiah in his unworthiness. A seraph takes a coal from the altar and touches his lips, symbolically cleansing what Isaiah himself identified as his greatest deficiency.
Cleansing always comes before commissioning. Isaiah is not sent to speak for God while still carrying the very uncleanness he confessed. He is purified first, a pattern that holds throughout Scripture: God prepares the vessel before he fills it, and forgiveness is never a hindrance to calling, it is the doorway into it.
IV. The Question and the Answer
Only after this cleansing does God ask the question that opens the door to Isaiah's response, and Isaiah's reply becomes the phrase that defines this entire teaching.
Here am I. Send me. Notice what is not present in this response: no requirement for details, no negotiation over terms, no demand to know the difficulty of the assignment first. Isaiah offers himself completely, before he even knows what the mission will require of him. This is the posture of every prophet God has ever called, availability before information, willingness before understanding.
V. A Pattern Older Than Isaiah
This posture did not begin with Isaiah. It echoes earlier callings throughout the Old Testament, each following a similar shape, God calls by name, and the one called responds with simple availability.
Abraham answers this way at the most difficult moment of his life, the call to offer Isaac, and again later when the angel of the LORD calls out to stop him (Genesis 22:11). Moses answers the same way at the burning bush.
Samuel, as a boy serving in the temple, answers this way three times before Eli helps him recognize the voice calling him.
Each of these figures, Abraham, Moses, Samuel, Isaiah, answers before fully understanding what will be required of them. The pattern is consistent: God calls by name, and faith responds with presence and availability, trusting that the One calling will also equip and guide.
VI. The Cost Isaiah Was Not Told Upfront
It is worth noting what Isaiah's assignment actually was, revealed only after he had already said yes. God tells him the people will hear but not understand, see but not perceive, a difficult, largely unfruitful ministry by human measures.
Isaiah asks how long this hardship will last, and the answer given is sobering, until cities lie waste and the land is desolate (Isaiah 6:11-12). Isaiah said here am I, send me, before knowing any of this. This is a crucial, humbling detail. Genuine calling is not contingent on the mission being easy, successful, or well-received. It is a response of availability offered in advance of knowing the outcome, trusting the character of the One who calls rather than the promise of comfortable results.
VII. What This Means for Ordinary Obedience Today
Few believers will receive a vision as dramatic as Isaiah's throne room encounter. But the posture Isaiah models is available to every believer in the ordinary moments God calls, a nudge to speak to a stranger, a door opened for ministry, a hard conversation that needs to be had, a mission field that feels far outside comfort or ability.
The response God is looking for is not a resume of qualifications. It is not a demand for full information before commitment. It is the same simple, costly, faithful phrase spoken by every prophet before: here am I, send me. Said honestly, in full awareness of one's own inadequacy, and full trust in the One who cleanses and equips before he sends.
A Closing Prayer
Holy, holy, holy is the Lord. Let me see you as you truly are.
Undo me where I need undoing, and cleanse what I confess.
When you call, let me not ask for every detail first.
Here am I. Send me.
In Jesus' name, amen.