Why should Christians serve in the church? Some will say it is because we are supposed to. Others will say that is how we show gratitude. Without denying these answers, I think there is a fuller answer and this is grounded in the very nature of the God we serve. We serve because of the Trinity.
Have you experienced the frustration of volunteerism in the church? They go on holiday and do not honour their commitment, or they are not punctual whether because they didn’t set/hear their alarm or simply didn’t think it was more important than what they were doing at the present moment. I’m not writing as a grumpy ungrateful pastor, though if I’m honest, my heart’s default is exactly that. How can service in the light of the Trinity inform our service?
The triune God works.
In Genesis 2:2 we read that God finished his work of creation. Creation was a triune work. In the beginning God created. As the old hymn says, “This is my Father’s world.” God the Father created (Gen 1:1; Rev 4:11). God the Son created, for without him nothing was made that was made (John 1:1-3; Col 1:15-17). God the Spirit created (Gen 1:3; Psa 104:30). Jesus said, “My Father is working until now, and I am working” (John 5:17 ESV).
The God in whose image we are created is at work. He is faithful in his work. In the person of the Son, we see that the work was even excruciating. Jesus’ work of service was not based upon whether or not it was easy or fun. Jesus’ excruciating work was to the Father’s glory.
The triune God works with joy.
God is the joy giver. He is the joy giver because he is the possessor of all joy. Fred Saunders calls God in Himself being “within the happy land of the Trinity”. There is an ecstatic working of God. We see this “fleshed out” in the Son during the horrendous beauty of the crucifixion. The author of Hebrews tells us that joy motivated the crucifixion (Heb 12:2). True, Jesus despised the shame of the cross, but that didn’t diminish the joy in the work of redemption.
The God we serve works joyfully and ecstatically. If we are to reflect God as those made in his image, our attitude in service should reflect the One who served us. This is also where I preach to myself, for when others fail in their service, I can easily become frustrated, and although my service may be diligent, at that point it is not joyful, and thus not Trinitarian.
The triune God works diversely and inter-dependently.
The Trinity is one God in three distinct persons. They are not symmetrical. In other words, the Father is not the Son. The way the Father and Son relate to each other in their roles is distinct. The Son never becomes the Father. It was Jesus, the Son who incarnated and was crucified, not the Father or the Spirit, although God (the Father) was in Christ reconciling the world to Himself (2 Cor 5:19). Their work was distinct, but the work was not independent.
In our service of the triune God, we need to understand that we do not serve alone. We serve with the people of God. We serve the same high goal. However we serve that goal diversely. As a body’s purpose is to obey the head, the heart and the hands work out that obedience in a different fashion. They are gifted to do different things. We work unto the one God with various gifts, services, and activities (see 1 Cor 12:4-7, notice the triune emphasis). However, we do our part in harmony. In other words, God has written a symphony, and every instrument plays it’s part according to the Conductor’s movements and the Composer’s manuscript. The second violin gets to play it’s part for the glory of the music, just as the first violin does. By the way symphony means a togetherness of sound. In joyful, diligent, diversity there is beauty in our service when conducted unto the common goal.
The triune God works selflessly
Within the Trinity there is no fighting or debating about who does what. There is a perfect harmony of self-giving. This can be seen in the incarnation of the Son. Philippians 2:1-11, clearly shows the humility of the Son and the Father’s exaltation of the Son.
Our service should not be for self-promotion. Whether that promotion is to advance to another ‘level’ of service, or the promotion is to promote the way others view us. If the Triune God, who is worthy of all glory and honour exhibits outpouring service. How much more should we the creature serve for his honour and not our own? This means we can be content with where we serve instead of longing for another’s position or opportunity. We can serve God fully with the opportunities that the Triune God has placed before us.
There is a lot we can learn from the Three in One, regarding how we serve God through the Church. It may go a long way to encourage our people in light of the Trinity. Oh yeah, and one more thing. If we are actually becoming like God instead of simply working for God, then we are discovering something about the partnership of the Spirit (2 Cor 13:14), and that is, in part, experiencing the glorious Gospel.
 Latin excruciatus, past participle of excruciare, from ex- + cruciare to crucify, from cruc, crux cross, or literally “out of the cross”
 ek-stasis meaning to go out of yourself. Each Person in the Trinity is giving unto the others.
 From the Greek symphonia = syn- “together” + phone “voice, sound”