Search this study companion
At a glance
The Lord high and lifted up; seraphim who cover their faces; a house filled with glory and smoke.
The first honest word was not a ministry plan. It was ‘Woe is me.’ Cleansing came before any commission.
Relevant Scripture
“In the year that king Uzziah died I saw also the Lord sitting upon a throne, high and lifted up, and his train filled the temple. Above it stood the seraphims: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly. And one cried unto another, and said, Holy, holy, holy, is the LORD of hosts: the whole earth is full of his glory. And the posts of the door moved at the voice of him that cried, and the house was filled with smoke. Then said I, Woe is me! for I am undone; because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, the LORD of hosts.”
Isaiah 6:1–5 KJV
UECF.NET summary
Isaiah 6 is the biblical scene this chapter is built around, and it remains one of Scripture’s clearest pictures of what happens when a human being is confronted with the holiness of God. The date is not decoration. King Uzziah has died; a long, impressive reign is over; the earthly throne is empty. Isaiah is given to see the throne that was never empty. The Lord is high and lifted up. His robe fills the temple. The seraphim — themselves burning, holy creatures — cover their faces and their feet. The song they cry is not ‘Loving, loving, loving,’ or ‘Mighty, mighty, mighty,’ but ‘Holy, holy, holy.’ In Hebrew, repetition is emphasis. To say a thing three times is to say it without remainder.
Isaiah’s first response is not volunteerism. He does not offer a programme. He pronounces a woe on himself. The man who will later preach woes over the nation discovers that the first woe belongs at home: unclean lips, an unclean people, and a King whose glory has just made both facts undeniable. Holiness does not first congratulate the religious. It undoes them. Only after a coal from the altar touches his mouth — a picture of atonement, not self-improvement — is Isaiah able to hear the question, ‘Whom shall I send?’ Service that skips this sequence is not Isaiah’s religion. It is something safer.
This companion therefore reads the chapter as a map of true worship: vision of God, conviction of sin, cleansing by God’s own provision, then a sent life. The printed book is known for lingering over each of those movements. Our notes stay with the Scripture itself and with the theological claim it forces: you do not meet the holy God and remain the same, and you do not become useful to him by remaining uncleansed.
Main theological themes
- The trisagion — ‘holy, holy, holy’ — as Scripture’s highest ascription of God’s being
- Conviction of sin as the first honest response to glory
- Atonement before vocation: the coal, then the commission
Key ideas
- Earthly thrones fail; the vision of Isaiah 6 is given precisely when a human king is gone.
- Even the sinless seraphim cover themselves. Holiness is not casual even in heaven.
- Unclean lips are not a small defect. Speech reveals the heart; Isaiah names the place the holiness of God has exposed.
- God’s holiness does not cancel mission. It makes mission possible by first making the messenger clean.
Important concepts
- Trisagion — The thrice-holy cry of Isaiah 6:3 (and Revelation 4:8): holiness stated with the strongest emphasis Hebrew can give.
- Woe is me — Isaiah’s self-malediction: the prophet stands under the same judgment he will later announce.
- Coal from the altar — A sign that cleansing comes from God’s altar — from sacrifice — not from Isaiah’s resolve.
Related Bible references
- Isaiah 6:6–8
- Revelation 4:8
- Exodus 33:20
- John 12:41
- Hebrews 1:3
Practical Christian application
- Begin a time of prayer this week with Isaiah 6 before you present any request.
- Confess specifically, not generally: name the ‘unclean lips’ rather than a vague sense of failure.
- Do not volunteer for a new ministry task until you have asked whether you are trying to skip the coal.
Questions for study
Reflection questions
- If you saw what Isaiah saw, would your first word be worship, excuse, or woe?
- What ‘earthly throne’ in your life has recently failed, and has that loss made God look larger or smaller?
- Where are you offering God service that has not yet passed through conviction and cleansing?
Small-group discussion
- Why do the seraphim cover their faces? What does that say about casual approaches to worship?
- How should a church’s public confession of sin sound if Isaiah 6 is taken seriously?
- What is the difference between being ‘undone’ by holiness and being crushed by human shame?
These notes are an original UECF.NET study companion and are not a reproduction of R. C. Sproul’s text, which remains in copyright. Read chapter 2 — book pages 15–34 — in The Holiness of God by R. C. Sproul (Tyndale House, 1998 edition). Scripture quotations above are the King James Version. No quotations from Sproul are included on this page.
