The Deliberate Union: "In God the Father and the Lord Jesus Christ"
1 Thessalonians 1:1
Paul, Silvanus, and Timothy,
To the church of the Thessalonians in God the Father and the Lord Jesus Christ:
Grace to you and peace.
Likely one of the earliest letters in the New Testament (written around A.D. 50–51 from Corinth). Paul, is under the inspiration of the Holy Spirit, and in his opening he is immediately infusing his message with deep gospel truths. First and foremost is that he addresses them as "the church" (gathering, special assembly). And he makes it clear that they are, "in God the Father and the Lord Jesus Christ." These believers aren’t defined by their city, their past sins, their persecution, or their circumstances. Their identity is rooted in their relationship with God. This little phrase is profoundly comforting. The church is safe because it is in the Triune God. And that position never changes.
The church in God. The church in Jesus Christ. The Father, the Son, and the Spirit. Paul says the church is "in God the Father and the Lord Jesus Christ." He uses a single preposition. This isn’t sloppy writing, it’s deliberate. It places the Father and the Son on the same level of divine reality. The believers’ new identity, security, and fellowship are found in a vital union with both.
If Jesus was not considered to be God, then it would be blasphemy to phrase this statement in this manner. This little phrase quietly but powerfully affirms the deity of Jesus Christ. A devout Jewish monotheist like Paul would never casually link a mere human, even an exalted prophet or angel, with "God the Father" under one preposition and one sphere of belonging. Yet he does it repeatedly in his letters. Calling Jesus "the Lord" carries Old Testament weight too. Jesus, as far as Paul is concerned, is not a secondary figure. He shares fully in the divine identity and work.
And some would argue, "why doesn't he add to this the Holy Spirit?"
If we recall, it was said of The Spirit that He will not come to testify of himself. The Holy Spirit is the Person of the Godhead who does not draw attention to Himself.
Jesus said of the Spirit, "He will glorify me, for he will take what is mine and declare it to you" (John 16:14)
The Spirit’s ministry is to point us to the Father and the Son, to convict, comfort, empower, and unite us to Christ. He is laboring in love for Christ, wonderfully self-effacing. When the church gathers "in" the Father and the Son, the Spirit is already the One making that union possible. The Spirit is Himself the living bond of love and communion between the Father and the Son, and between God and His people. The gospel comes "in power and in the Holy Spirit." The believers received that word "with joy of the Holy Spirit" (vs. 5-7). And later on, Paul will pray for their sanctification "through the Spirit" and speak of the Spirit’s ongoing work.
Nothing about "the church" "in Christ" happens without the Spirit. The Father sends, the Son comes and redeems, the Spirit indwells and applies. It's just that simple. All three are fully God, one in essence, distinct in person. And the Trinity is not some later invention; it is the God who is revealing Himself progressively through the story of our salvation.
And so, that's the point. This whole construction quietly shouts out the deity of Jesus. This was revolutionary teaching for brand-new believers in a pagan city like Thessalonica, many of whom came from idol-worshiping backgrounds. And this is a reminder for us today, setting a strong foundation for the rest of the letter as we study further; pointing us to Christ, producing fruit in Him, and anchoring your hope in the work of the Holy Spirit.
This Trinitarian foundation is not just theology for theologians. It is the rock-solid ground for everything we believe and do. Because we are in the Triune God, we can endure suffering with joy. Because Jesus is Lord (fully divine), we can wait eagerly for His return from heaven. And because the Spirit is at work, our faith is not dead but active, our love is not lazy but laborious, and our hope is not fragile but steadfast.
You see this don't you?
You are in God the Father and the Lord Jesus Christ. The Holy Spirit is actively at work in you, producing fruit, anchoring your hope, and pointing you continually to Jesus.
You're experiencing that right?
My prayer, and Paul's, is that you will know God in this way. Praying that He will keep you rooted in this truth today. Praying that He will glorify Christ in you, produce in you the fruit of faith, love, and hope, and sustain you with joy no matter what comes. I pray that your life will quietly shout the same reality that Paul declared to the Thessalonians. And I pray this in the name of the Lord Jesus Christ, Amen.
Grace and peace to you all; real, deep, and Trinitarian.