Sunday, May 31, 2026

Sermon for the Feast of the Holy Trinity - Rom 11:33-36

 

   Holy Trinity

                                                                                                            Rom 11:33-36

                                                                                                            5/31/26

 

 

            In 1964 the Second Vatican Council of the Roman Catholic church issued Lumen Gentium, which is Latin for “light of the Gentiles.” This was one of the principal documents of the Second Vatican Council, and as an official declaration of this church council it is considered to be dogma in the Roman Catholic church – it is something that must be believed.

            Lumen Gentium addresses the relationship of those who have not received the Gospel to the people of God. In speaking about Islam it says, “But the plan of salvation also includes those who acknowledge the Creator. In the first place amongst these are the Muslims, who professing to hold the faith of Abraham, along with us adore the one and merciful God, who on the last day will judge mankind.” So the dogma – the position that must be believed by Roman Catholics – is that Christians and Muslims worship the same God.

            Now it seems very unlikely that any Muslim is going to agree with this. The Koran certainly mentions Jesus, whom it calls Isa. But according to the Koran Jesus was only a man, and not the Son of God. He was a great prophet and apostle who did not die by crucifixion, but instead was taken up into heaven by God.

            The Koran explicitly rejects the idea that Jesus is the Son of God. It also condemns the very idea that God is anything but one. It says to people like you, “O followers of the Book! Do not exceed the limits of religion, and do not speak against Allah, but speak the truth; the Messiah, Isa son of Marium is only an apostle of Allah and his Word which he communicated to Marium and a spirit from him. Believe therefore in Allah and his apostles, and say not, Three. Desist, it is better for you. Allah is only one God; far be it from his glory that he should have a son.”

            The idea that there is only one God has existed in the world for a long time. It was the faith of Israel in the Old Testament. It has continued to be the faith of Judaism. It has been the belief of Isalm since it was created by Muhammed in the seventh century. The philosophical thought of the Greco-Roman world included positions that looked very much like monotheism – the belief that there is only one God.

            Because the Christian faith knows the Old Testament to be the Word of God, it too confesses that there is only one God. Yahweh had revealed about himself in the Old Testament, “Hear, O Israel: The Lord our God, the Lord is one.” This confession of one God continues in the New Testament. St Paul told the Corinthians who lived a world that believed in hundreds of gods, “Therefore, as to the eating of food offered to idols, we know that ‘an idol has no real existence,’ and that ‘there is no God but one.’”

            It all seems straightforward … until the revelation of God in Jesus Christ. In Galatians Paul describes how we were under the curse of the law. The holy and just God has revealed his will. But as fallen people, we live imprisoned under sin.  Therefore Paul tells us, “For all who rely on works of the law are under a curse; for it is written, ‘Cursed be everyone who does not abide by all things written in the Book of the Law, and do them.’”  We cannot live perfectly according to God’s will so we would have faced God’s curse and judgment.

            However, God did not leave us there. Paul goes on to say in Galatians, “But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, to redeem those who were under the law, so that we might receive adoption as sons. And because you are sons, God has sent the Spirit of his Son into our hearts, crying, ‘Abba! Father!’”

            Now Paul has explained exactly how God redeemed us.  He wrote, “Christ redeemed us from the curse of the law by becoming a curse for us—for it is written, ‘Cursed is everyone who is hanged on a tree.’” Jesus Christ received the curse in our place when he died on the cross. Paul began the letter by saying that Jesus, “gave himself for our sins to deliver us from the present evil age, according to the will of our God and Father.”

            This deliverance did not just mean forgiveness. It is the rescue from death itself. During Easter we celebrated how God raised Jesus from the dead. God vindicated Jesus and began our resurrection in him. Paul told the Romans about the Gospel that it was “promised beforehand through his prophets in the holy Scriptures, concerning his Son, who was descended from David according to the flesh and was declared to be the Son of God in power according to the Spirit of holiness by his resurrection from the dead, Jesus Christ our Lord.”

            Paul says that God sent forth his Son into the world to redeem us. He explains that God has sent the Spirit of his Son into our hearts. He describes God as the Father. The simple picture of the one God has become much more complicated.

            Our text this morning is from the end of Romans chapter 11. We should recognize from the start that Paul is not talking specifically here about the Holy Trinity. Instead, he is bringing his discussion about how God has dealt with Israel to a close – a topic that he began addressing in chapter 9.  Many Jews, the descendants of Israel had rejected Jesus Christ. But Paul seeks to explain that this fact doesn’t mean God’s word has failed. Instead he is dealing with both Jews and Gentiles in order to save.

            Paul explains as much as he can … until he can’t go any farther. As he reaches the point where it exceeds human understanding and our ability to explain it the apostle exclaims, “Oh, the depth of the riches and wisdom and knowledge of God! How unsearchable are his judgments and how inscrutable his ways! ‘For who has known the mind of the Lord, or who has been his counselor?’ ‘Or who has given a gift to him that he might be repaid?’ For from him and through him and to him are all things. To him be glory forever. Amen.”

            Now if we cannot understand and explain what God does, what chance do we have in understanding and explaining who God is – what he is like in his very nature?  After all, God is God, and we are not. And so Paul’s words give us the right attitude as we come to what God has revealed about himself in Scripture. We find that we can describe what God is like on the basis of his word, even if we can’t understand and explain how it is true.

            What we learn is that God is one, and that God is Father, Son, and Holy Spirit. God is one and when the risen Lord instituted baptism he said to baptize “in the name of the Father and of the Son and of the Holy Spirit.” He said not “names” but “name,” for there is only one God.

            There is one God, yet in Scripture God reveals himself again and again as Father, Son, and Holy Spirit. The baptism of Jesus is the beginning of his ministry. Jesus stands in the water. The Holy Spirit descends on Jesus in the form of a dove. And the Father says, “This is my beloved Son, with whom I am well pleased.” Paul ends Second Corinthians by saying, “The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all.”

            Now one way to try to explain this is to say that Father, Son, and Holy Spirit are not truly distinct from one another. Instead, they are different ways or modes by which the one God reveals himself. This is known as modalism. It is an ancient heresy that continues today in so-called “one God Pentecostals.” But at Jesus’ baptism we see all three persons of the Trinity interacting at the same time. On Pentecost we celebrated how the Son who is seated at the right hand of the Father poured forth the Spirit. Jesus talks about the Father and the Spirit and how he relates to them. There is no getting around the fact that while there is one God, the Father, the Son, and the Holy Spirit are distinct from one another.

            The other way to explain it is to say that the Son and the Spirit are not really God. This is what the heretic Arius said about the Son, and others made similar claims about the Spirit. They argued that the Father created the Son and the Spirit. They are like God in being highly exalted creatures, but they are not God in the same way that the Father is God.

            It is only because of Jesus Christ that we know God to be Father, Son, and Holy Spirit. And so questions about the Trinity are closely linked with the confession about who Christ is. Scripture is clear in revealing that he is God. John says about Jesus, “And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth.” Yet John has just about the Word, “In the beginning was the Word, and the Word was with God, and the Word was God.” Paul told the Colossians about Christ, “For in him the whole fullness of deity dwells bodily.” The Son, Jesus Christ is true God. He was not created because nothing created can be God.

            In the same way the Spirit is true God. The Spirit is set side by side with the Father and the Son. Peter says that to lie to the Holy Spirit is to lie to God. The Spirit carries out the divine work of creating new spiritual life as he regenerates and renews the believer.

            There is one God. God is Father, Son, and Holy Spirit. They are distinct from one another, and yet they are also related to one another. The Church uses the term “person” to confess this truth. The Son is the Son of God. He eternally stands in relation to the Father as the Son. We confess this truth using the language of “begotten.” We are using human language to describe what God has revealed about himself, so as we have seen, this does not mean that the Son was created. Instead it means that he alone stands eternally as the Son in relation to the Father.

            The Spirit also relates to the Father and the Son as the One who proceeds from them. Jesus said, “But when the Helper comes, whom I will send to you from the Father, the Spirit of truth, who proceeds from the Father, he will bear witness about me.” Paul told the Romans, “You, however, are not in the flesh but in the Spirit, if in fact the Spirit of God dwells in you. Anyone who does not have the Spirit of Christ does not belong to him.” The Spirit of God is the Spirit of Christ.

            God’s Word teaches us that he is eternally this way. There has never been a time when he was not this way, nor will there be in the future. We confess this in the Gloria Patri every time we say, “Glory be to the Father, and to the Son, and to the Holy Spirit, as it was in the beginning, is now, and will be forever.”

            These relations between the persons of the Trinity exist within God himself. But Scripture teaches us that they do not in any way divide the oneness of God. Jesus said, that “I am in the Father and the Father is in me.” He said, “I and the Father are one.” The Spirit is the Spirit of God. The Spirit is the Spirit of the Son. And when we speak about the external work of God we recognize that it is the one God who acts as Father, Son, and Holy Spirit.

            These are the truths that we are about to confess in the Athanasian Creed. At the end of that creed we will say, “This is the catholic faith: whoever does not believe it faithfully and firmly cannot be saved.” This is not the claim that one must remember and understand every statement perfectly. It is saying that you cannot knowingly reject these biblical truths.

            And at the same time there is the need for each one of us to grow in our understanding of the Holy Trinity. To confess Jesus Christ is to confess the Trinity. We see this as Christianity stands in opposition to Isalm. We see it as Christianity stands in opposition to Mormonism, and the Jehovah Witness. We see this as Christians reject the false claims made by the Roman Catholic church about God.

            While there are indications of the Trinity in the Old Testament, it is only in Jesus Christ that we have come to know the triune nature of God. The Father sent the Son, as he was incarnate by the work of the Holy Spirit.  Our very knowledge of the Trinity reveals God’s action to save us.

             

 

       

 

  

 

 

 

 

           

 

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