The Holy Trinity- Father, Son, and Holy Spirit.
Such a sublime mystery, one which can only be taken hold of and believed by faith. To our infinite and miniscule minds, we cannot even begin to comprehend the nature of God. All of our terms are but at best a poor description of Him- for the Lord is not to be comprehended. He is complete other. He is beyond the realms of understanding.
And yet, how is it that we know whom God is? He graciously reveals it to us- through His Word, throught the witness of His people, but most importantly, through Himself.
All acts of the Triune God are just that- trinitarian. From Creation, to Salvation, to the End of the Age- all movements of God have participating in them the Three Divine Persons.
But wait just a minute. God tells us that He is One. How can it be that there are Three Persons in One God?! Surely such a thing is blasphemy; surely it is heresy. But no- it is true. For though there are Three, there is One. Unity in Trinity, Trinity in Unity; undivided, and yet seperate.
What is this blessed mystery? What mind can fathom God? None can know the Lord- except through Him. In order to know God, one must know God.
And how is this? It is through the Second Person of the Trinity- Jesus the Christ. Through Him, we are reconciled to God the Father. But how does one come into a saving faith in Christ? Through the gift given of the Holy Spirit. Faith is a gift- one that cannot be earned or accepted; rather, it is received.
So, one has a relationship with the Father, through the Son, and in the Spirit. And when you have relationship with One, you have a relationship with Three. Because it is impossible to believe in a part of the Triune God, deny the other, and say that you have a faith in God. Its all or nothing.
God is Three Persons- in perfect love, harmony, and relationship with each other. And when we have Faith, and receive the gifts of Faith- namely, forgiveness, life, and salvation- we enter into a mystical union with the Triune God. He who is sufficient in and of Himself, who needs no other, graciously and lovingly gathers us into Himself- and we partake of the Divine Nature!
And how does this all happen? In Christ. For in Him we are reconciled to the Father, and we receive the Holy Spirit. He who is God became man, that by participating in our nature and reconciling us to the Father by the forgiveness of sins won upon the Cross by His Blessed Passion, we might partake in His Divine Nature. He takes upon Himself our burdens, and gives to us His blessings. In Christ alone may the Trinity be revealed, and by Him may we enter into faith and communion with the Lord. No other way.
All glory, honor, laud, and praise be to the Father, Son, and Holy Spirit. Three in One, and One in Three, the Most Blessed Trinity, God Almighty, world without end. Amen.