Sunday, June 15, 2025

The Feast of the Most Holy Trinity

The Feast of the Most Holy Trinity – June 15, 2025
Psalm 8; Isaiah 6:1-7; Romans 11:33-36
St. John 3:1-17

In the Name of the Father, and of the + Son, and of the Holy Spirit. Amen.

The three creeds of the Christian Church state the fundamental doctrines of what it means to be a Christian. At a bare minimum, all three creeds affirm the doctrine of the Holy Trinity and the two natures in Christ. These two doctrines then form the basis for the doctrines of creation, redemption, and sanctification. And then, built on these, are the doctrines of the Holy Sacraments – Baptism and the Lord’s Supper.

Although the three creeds all state these fundamental doctrines, each creed takes a unique place in the life of the Christian. The Apostles’ Creed is the Baptismal Creed. It is the daily food needed by our faith and should be confessed at least once a day by every baptized child of God. It is also the catechetical creed, the one used for bringing new believers into an understanding of the fundamental teachings of the Scriptures. It is the catechetical creed precisely because it is the Baptismal Creed. It stands as the front door to the house of God, entered into repeated and daily as the Christian returns daily to his baptism.

The Nicene Creed is the creed of the feast; the creed most closely associated with the Lord’s Supper. It is more robust than the Apostles’ Creed even as the meat given to the mature is more robust than the milk given to infants. It is confessed every time the Lord’s Supper is received as an indication of the maturity of those gathered to receive the Holy Supper. If the Apostles’ Creed is daily food, then the Nicene Creed is the feast, enjoyed on special occasions.

The Athanasian Creed, undoubtably the one you are least familiar with, is the poetry to which the Christian life is set. It is written in the style of wisdom literature, with repetition and layered meaning, intended to be enjoyed and contemplated over time. In some traditions, it is confessed monthly (or even weekly) in the weekday prayer offices. In others, such as ours, it is reserved for today’s great feast, the Feast of the Most Holy Trinity. It is distinguished as the clearest confession of all the Scriptures have to say concerning the doctrine of the Holy Trinity and it even expands on the confession of Christ’s two natures. If the Apostles’ Creed is daily food and the Nicene Creed a feast, then the Athanasian Creed is a precious spice, to be considered throughout the year, discerning its flavors and subtleties so that when you have the opportunity to confess it, your knowledge and understanding may grow.

It is obvious through experience that Christians take the doctrine of the Holy Trinity for granted. We know that it is a necessary doctrine and we know that we believe it, but we give very little thought to it. Maybe the repetition of the Athanasian Creed lulls our mind into blind recitation. Maybe the incomprehensible nature of the mystery of the Trinity frightens us and so we let our fear corner us into saying, “I believe in the Trinity,” and nothing more. Whatever the reason, we are content to know the word “Trinity” and nothing more…which is to our shame.

It is our shame because the Scriptures are full of Trinitarian language. In the very beginning, the Father speaks the Word of the Son and the Spirit hovers over the waters of Creation.[1] We are given glimpses into the inner conversations of the Holy Trinity when God considers the Tower of Babel.[2] We’ve spent the last five weeks hearing Christ speak of His ascent to the Father and the sending of the Holy Spirit, that the Father would send the Holy Spirit to speak the words of the Son.[3] The very name into which you are baptized—the Father, the Son and the Holy Spirit—is Trinitarian; the very name which seals you as a child of God, one who stands to inherit eternal life.

And this is where diving into the mystery of the Holy Trinity becomes personal, even practical for you. The Holy Trinity is by definition personal. In the One Godhead, the One Substance of God, there are three divine Persons. These Persons are defined by their relationships – the Father is unbegotten, the Son is begotten of the Father alone, and the Holy Spirit proceeds from both the Father and the Son. As the baptized children of God, you are made temples of the Holy Spirit, sons of the Father, and stand as co-inheritors with the Son. The mystery and activities of the Holy Spirit are why you are here this morning.

So, then, let us take a moment to consider the Holy Trinity first in Its essence and then according to Its will.

When thinking about the essence of the Holy Trinity, our forefathers in the faith have done us a great service in composing the Athanasian Creed. What is said of the unity of the Trinity is true of each Person within the Trinity. God is uncreated, infinite, and eternal. There was never a time before God nor a time without God, a time when God wasn’t. He has no beginning and no end. God is almighty and the Lord of heaven and earth. He lacks nothing and has dominion over all things. There is nothing outside of His sight nor beyond His reach. As the Lord of all, He is owed loyalty, reverence, worship, and praise by all things beneath Him, which is to say, by everything.

At the same time, we cannot confuse the Persons. The Father is Lord, the Son is Lord, the Holy Spirit is Lord—individually each Person is Lord and yet there are not three Lords but one Lord. The Father is neither created nor begotten. The Son is neither made nor created but begotten by the Father alone. The Holy Spirit is of the Father and of the Son, neither made nor created nor begotten, but proceeds from both the Father and the Son. There are not three Fathers, three Sons, or three Holy Spirits, but one Father, one Son, and one Holy Spirit.

And though it is tempting, none in this Trinity is before or after another. The Father is not the chief member of the Holy Trinity, just as the Holy Spirit is not the least. The Father, the Son, and the Holy Spirit are coequal, meaning they are of equal majesty, power, and might. Our typical formula for prayer is to the Father, through the Son, and in the Spirit. That phrasing might be misunderstood as giving some kind of “hierarchy” to the Trinity but that is a mistake. The three Persons are coequal and coeternal.

When Christ says, “My Father is greater than I,”[4] He is speaking with regard to His humanity. When the Son descended into the flesh of man, He made Himself lower than the Father. He is less than the Father with respect to His humanity, but He is equal to the Father with respect to His divinity. That is why Christ also says, “I and My Father are one.”[5]

So too with the Holy Spirit. Though He proceeds from the Father and the Son, He is not “less than” or subordinate to the Father and the Son. He proceeds in the same power and authority as the Father and the Son. Scripture ascribes to the Holy Spirit the same divine names, attributes, works, honor, and glory due to the Father and the Son. When Ananias is caught lying to the Holy Spirit, St. Peter said, “You have not lied to men, but to God,”[6] granting the fullness of the Godhead to the Holy Spirit.

Now when we consider the will of God, we must remember that the Holy Trinity never acts apart from Itself, that is, when the Father acts, the Son and the Holy Spirit are acting as well. The Trinity is of one will and that will is primarily concerned with your salvation; insofar as that will has been revealed to us. We cannot know God’s will outside of that which has been revealed in His Holy Word. What the prophets and apostles have revealed to us is that God is singularly focused on the salvation of man. It is for this reason that Christ says that all the Scriptures testify to Him.[7] Your salvation is in the life, death, and resurrection of Christ. “For God loved the world in this way, that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life.”[8]

What then of the Law? Is it not the eternal will of God? Are we not to be concerned with keeping God’s law whole and undefiled? Most certainly! Just as there is no division between the will of the Trinity, there is no division within God’s will itself. The Law is God’s will for the man of salvation. It is the fruit of salvation, the fruit of repentance, the manner in which God has ordered the life of His beloved creation. We do no evil, not that we should appear approved by God or man, but so that we do what is honorable in the sight of God, lest we become disqualified of the salvation to which God has called us.[9] You did nothing to be born of your father and mother but an evil life can certainly disqualify you from any inheritance.

For the sake of brevity, we must leave off our discussion of the Holy Trinity for today. However, I would challenge all of us to spend more time in the coming year devoting attention to this core doctrine of the Scriptures. Specifically, I would challenge us all to spend more time considering the Athanasian Creed. This summer, over the next three months, take time to recite the Athanasian Creed at least once a week, and consider a small portion of it each day. As you do your daily bible reading, note those passages that are referenced in this great creed; those that speak of His Unity, of the distinction of Persons, of God’s attributes, and of His will. Ask questions of the text and ask questions of the creed. May the Almighty God, Father, Son, and Holy Spirit, the Trinity in Unity and Unity in Trinity, bless you in this endeavor, now and forevermore.

In + Jesus’ name. Amen.



[1] Genesis 1:1-3.

[2] Genesis 11:7.

[3] St. John 14-16, the Gospel texts for the last four Sundays after Easter and Pentecost.

[4] St. John 14:28.

[5] St. John 10:30.

[6] Acts 5:3-4.

[7] St. John 5:39.

[8] St. John 3:16.

[9] 2 Corinthians 13:7.

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