Sunday 27 May 2018

Holy Trinity [Isaiah 6:1-8] (27-May-2018)







This sermon was preached at St Matthew's Lutheran Church, Maryborough, 8.15am, and Grace Lutheran Church, Childers, 10.30am.


Grace, mercy and peace be to you from God our Father, and from our Lord Jesus Christ.

Text (Isaiah 6:1-13):
And I heard the voice of the Lord saying, “Whom shall I send, and who will go for us?” Then I said, “Here am I! Send me.”

Prayer: Heavenly Father, send to us all your Holy Spirit, to me that I may preach well and to all of us that we may hear well; in Jesus’ name we pray. Amen.


Today we’re celebrating the festival of the Holy Trinity, where we remember the particular teaching about God, that he is one true God, in perfect unity, but also reveals himself to us as three persons, or three individuals, the Father, the Son and the Holy Spirit.

Today, for our sermon we’re going to meditate on the words from the Prophet Isaiah, chapter 6. And there’s a number of things that happen in this chapter:

I.                   Isaiah sees a wonderful vision of God.
II.                 He recognises his sin, and he receives forgiveness.
III.              Isaiah is called to be a prophet, and is given a word from God to speak.

So first, what did Isaiah actually see? First, Isaiah gives the time: he says that all this happened in the year that King Uzziah died. We learn here that kings comes and go; rulers die, leaders perish – but God does not. He is the living God.

And Isaiah says he saw him. And actually, Isaiah says very little about what he saw—he could have said much more, but he says just enough for us. He says: I saw the LORD sitting upon a throne, high and lifted up; and the train of his robe filled the temple.

Can you imagine? The Lord is so far above our comprehension that the edge, the hem of his robe filled the temple. Imagine – Isaiah saw the Lord, and yet he says nothing about what he looked like, only that he was sitting on a throne and the hem of his robe filled the temple. What you think Isaiah is trying to tell us about God?

But then, Isaiah tells us about the living creatures, the holy angels, the seraphim who were there. Above him stood the seraphim. Each had six wings: with two he covered his face, and with two he covered his feet and with two he flew.

Throughout the bible, we read about all kinds of angels and heavenly creatures that God has created. Right in the beginning of the book of Genesis, we read about when Adam and Eve fell into sin, that God appointed angels called cherubim to guard the entrance to the Garden of Eden, with a flaming sword flashing back and forth. –We read later about Jacob and his dream where he saw angels going up and down a ladder to heaven. – Ezekiel saw some wonderful living creatures of God.

Here Isaiah calls the angels he saw: seraphim. And we Christians sometimes talk about cherubim and seraphim, angels and archangels. There is not just one kind of angel, but all different kinds. “Seraphim” means a spirit of fire, an angel of burning fire. In Psalm 104, it says that God’s ministers are a flaming fire. This is what we’re talking about here, who are standing in the presence of someone so wonderful, so magnificent, so glorious, so holy that with two wings they cover their faces and feet in reverence to him.

And we read that there is no silence in this vision. Not only does Isaiah see something wonderful, he also hears what this wonderful thing is. And one called to another and said: “Holy, holy, holy is the LORD of hosts; the whole earth is full of his glory!”

You probably recognise these words from when we celebrate the Lord’s Supper, when we sing these words: Holy, holy, holy, together with these wonderful living creatures. Notice also there that there are three holies: holy, holy, holy, just as we say in the blessing: the Lord bless you and keep you, the Lordmake his face shine on you and be gracious to you, the Lord look upon you with favour and give you peace. The LORD, the LORD, the LORD – holy, holy, holy – just as in baptism we say in the name of the Father and of the Son and of the Holy Spirit.

And so then we read: And the foundations of the thresholds shook at the voice of him who called, and the house was filled with smoke. Can you imagine if the words of the angel causes the foundations to shake, how much more the voice of God himself? These things are so holy that a cloud of smoke protects Isaiah from seeing anything further.

So what’s going on here? In the Gospel of John, chapter 12, we read a little explanation of what Isaiah saw. John says that it was Jesus whom Isaiah saw. And yet this same Jesus who had existed together with the Father and the Holy Spirit right from the beginning of the world is so holy that the angels can’t even look at him, and Isaiah says that the hem of his robe filled the temple.

And yet, this wonderful Jesus has descended from heaven and become a true human being just like us, a real man with real flesh and blood. Angels knew how wonderful this was that at his birth, they came tearing out of heaven to sing with the shepherds in the fields: Glory to God in the highest and peace on earth among those with whom he is pleased.

And now, this same Jesus has died. His blood has been shed, and his hands, feet and side have been pierced. As we read later in Isaiah: This Jesus has borne our griefs and carried our sorrows. By his stripes we are healed. The Lord has laid on him the iniquity of us all. And this Jesus that Isaiah saw has now risen from the dead and has ascended into heaven. This same Jesus that Isaiah saw has descended and has sat back down on his throne, but now with a difference: sitting there with real human flesh and real human blood.

And yet, can you imagine—this same Jesus whose robe just barely scraped the temple, had people come up to him during his life and touch the hem of his robe. We read about a woman with a bleeding problem who said to herself: If I only touch his garment, I will be made well. Here today Jesus lets us touch the hem of his garment as he descends in all his majesty to baptise a child. What about when we hear the absolution? Jesus lets us touch his garment, by giving us his word and speaking his gospel – his free forgiveness of all our sins. And we touch this garment, his word, and like the lady, we are made well. What about the Lord’s Supper? He clothes himself in bread and wine—we touch these things and eat and drink them, and power goes out from them through the living and active words: This is my body and blood given and shed for you for the forgiveness of sins.

But then here in the church, we are gathered with angels and archangels and with all the company of heaven. Jesus is the LORD of hosts, the king of the heavenly armies. Remember “O come, all ye faithful” at Christmas time when we sing, “Come and behold him, born the king of angels.”

And these wonderful angels are singing the praises still of this same Jesus, the Lamb of God who was slain to take away the sin of the world. They sing the words: Holy is the Father of this Jesus, Holy is this Jesus himself, and Holy is the Spirit that is breathed out of the mouth of Jesus.

Holy, holy, holy, Lord God of hosts.

But then remember that Isaiah said that when the voice called out, the thresholds shook. Do you realise that we would know nothing about Jesus at all if it weren’t for the word? It is the voice, the speaking, the word that makes the threshold, the foundations shake.

A church without the word of God is no church.
A sermon without the word of God is no sermon.
Baptism without the word of God is no baptism.
The Lord’s Supper without the word of God is a supper, a very light supper, but it not the Lord’s.

God had willed that his word be spoken here on the earth and it is this word that makes the threshold shake.

But then if we are going to hear God’s word here and enter into the presence of Jesus, how are we going to do it? What should we say? How would we be prepared?

Isaiah tells us: I said: Woe is me! For I am lost; for I am a man of unclean lips, and I dwell in the midst of a people of unclean lips; for my eyes have seen the King, the Lord of hosts!

Woe is me! This is the word of a man who knows his sin, and that he is totally unworthy to be in the presence of God. What about you? Can you say, “Woe is me” – or would you rather say, “Yay for me!” Be careful what you say—when you stand before God, you must know which one of you is the holy God and which one of you is the sinner. Isaiah knows who he is. And he says: I am lost. I am a man of unclean lips. Has God lost his way, or have you? Is God unclean, or are you? – Know who you are. If you are not lost, your Good Shepehrd cannot find you. If you are not unclean, then the blood of the Lamb cannot cleanse you. As St John says: If we say we have no sin, we deceive ourselves and the truth is not in us.

But there is something else, something new that God also wants to speak to us. We read: Then one of the seraphim flew to me, having in his hand a burning coal that he had taken with tongs from the altar. And he touched my mouth and said, “Behold, this has touched your lips; your guilt is taken away, and your sin atoned for.”

What a wonderful gift the angel gives to Isaiah! Isaiah says: Woe is me! and yet the angel gives God’s blessing, his forgives, his atonement. His guilt is taken away, and his sin atoned for. Isaiah says: I am lost, and yet the angel finds him. Isaiah says: I am a man of unclean lips, and yet those same lips are prepared and purified by the burning coal.

Jesus is very much like this burning coal. Here is a coal but it is also red hot with fire. Jesus is a true man, and yet he glows red hot with his divine nature. He is true man and true God in one person, just like this burning coal is both coal and fire together. And it is this Jesus who finds you, whose angels present him to you, who touches your lips. And he sets this water of baptism on fire with his word so that this baptism saves you. And the bread and wine of the Lord’s Supper he sets on fire with his true body and blood. Why? Purely so that when these things touch your lips, that your guilt will be taken away and your sin atoned for. This is also the whole reason why we have preaching, and sermons, and readings, and pastors, and a church at all – so that the wonderful forgiveness of sins in all of its simplicity and in all of its richness can come to you. What a wonderful loving Saviour we have who still comes to forgive us even today, even now through his words and his own promises!

There’s something I’d like to mention just before we finish. God actually calls Isaiah after this to be a prophet. He says: Here I am, send me! And then God sends him, but with a frightening message, and this is a message very much for our church today. God says: Go and say to this people: Keep hearing but do not understand; keep on seeing, but do not perceive; make the heart of this people dull, and their ears heavy, and blind their eyes; lest they see with their eyes and hear with their hears and understand with their hearts, and turn and be healed.

There are so many wonderful things that Isaiah has seen and heard, and yet many people will not hear, and yet he must preach, he must speak what God has told him to speak.

Many people are looking for a quick fix in the church today to all kinds of problems, especially in mission! What’s the one thing that could let the floodgates open up so that people could come flowing into the church again?

If only we realise what a wonderful Saviour we meet every Sunday when we sing his praises! If only we knew what a precious gift we have in the word of God and the sacraments! If only we knew that when we have the forgiveness of sins, we have everything and when we don’t have forgiveness we have nothing. And yet Jesus promises forgiveness to you and his word never lies.

But there will be many people who will simply be uninterested in this living Jesus, in the holy Triune God, in the holy Trinity. And yet, whether they believe or not, it is not us who converts them, but the Holy Spirit. We must stick to the word, and speak it in truth and hold to it with all our strength.

It is a great sorrow to many pastors of our church when people are just too lazy to read the bible, too uninterested in God’s word, bored with forgiveness—and yet God’s word is still powerful and his Spirit is living and active.

Many people have given up on God’s word and many pastors don’t preach it, because nobody expects God to call. God calls Isaiah here – and he calls him to speak a specific word. God has called me to be a pastor – and if it is him who calls, then his word is the only thing I can preach. God has baptised you, and if it is him who has called you as his own, then it is his word and nothing less and nothing more than his word that you are called to hear, to believe, and to help bring to the nations however and wherever God uses you.

Of course, when we have given up on God’s call, then the only thing we have left is dodgy church politics, we just intimidate others with the devil’s own power and use people to build up our own personal kingdom.

No—it is God who calls. And if it is He who calls, then it is His word which must be spoken, and no matter how many of how few people will hear it, Christ crucified must be preached, because it is this living Jesus and this living Jesus alone who finds our sinful lips and who speaks the living voice of His Holy Spirit into your ears to forgive each and every single one of your sins! Jesus says: Blessed are your eyes for they see, and your ears for they hear.

Holy, holy, holy, LORD God of hosts; the whole earth is full of his glory! Amen.


Dear Jesus, open our ears so that they hear, and our eyes so that they see. Give understanding to our hearts so that we may turn and be healed by your holy and powerful word, Lamb of God, Good Shepherd, thank you for taking away our guilt, and atoning for our sin. Take us, and use us, and send us as you will. Amen.


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