Throughout the New Testament there are passages that involve the persons of the Trinity⏤The Father, Son, and Holy Spirit. Many passages connect the Father and the Son (John 1:14; 10:30), or the Son and the Spirit (Luke 1:35; 2 Corinthians 13:17), or even the Father and the Spirit (Romans 8:14-16). There are a few, however, that express all three in one passage.
“As soon as Jesus was baptized, he went up out of the water. At that moment heaven was opened, and he saw the Spirit of God descending like a dove and alighting on him. And a voice from heaven said, ‘This is my Son, whom I love; with him I am well pleased'”(Matthew 3:16-17).
“Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit…”(Matthew 28:19).
May the grace of the Lord Jesus Christ, and the love of God, and the fellowship of the Holy Spirit be with you all”(2 Corinthians 13:14).
“God sent the Spirit of his Son into our hearts, the Spirit who calls out, “Abba, Father'”(Galatians 4:6).
“Now it is God who makes both us and you stand firm in Christ. He anointed us, set his seal of ownership on us, and put his Spirit in our hearts as a deposit, guaranteeing what is to come”(2 Corinthians 1:21-22).
Paul writes one of these passages in his letter to the Ephesians as he attempts to unite Jews and Gentiles within the church. And this one gives a glimpse of how the Trinity works together as One. Speaking of Jesus, he writes, “For through him we both have access to the Father by one Spirit”(Ephesians 2:18). Through Jesus, the Son, we have access to the Father by the Spirit.
To make sense of this, imagine standing on the coast of France looking over at England on a clear day. The white cliffs of Dover are in the distance on the other side of the English Channel, but there is no way to get across. Your new life and new future await you in England, but you are stuck in France.
Then someone comes up to you and says, “Hey, I have good news! Someone has made a way. For through the tunnel we have access to England by train. That is what Paul is saying here.
The Father is our destination. He is the one we now have access to who was previously unreachable by our own efforts. He made a way for us to now have access to Him despite our sin. Yet, to access the Father we must go through Jesus. Jesus is a tunnel, not a bridge, because we must be in Him to gain access to the Father. And the gift given to us to utilize this tunnel is the Holy Spirit. Just as one would travel through the tunnel by train, we go through Jesus by the Spirit.
All three persons of the Trinity operate together to get us to the Father so that we are no longer distant and disconnected from Him. As Scripture attests, “God was reconciling the world to himself in Christ, not counting people’s sins against them”(2 Corinthians 5:19).