This word – trinity – it is the foundation for Christianity. The word isn’t found in the Bible, but the Bible clearly mentions this doctrine. There is only one God, but he demonstrates Himself to the world as three persons because we don’t have infinite minds. If He were to give us a real demonstration of who He really is, it would blow our circuit board (slang use of brain).
Jesus is God.
When Paul saw the glorified Jesus on the road to Emmaus he was blinded. When John saw him in the book of Revelation, he fell as a dead man. When Moses saw God his face glowed so much that the people of Israel asked him to cover his face.

The Holy Spirit is a great gift from God.
15“If you love me, obeyd my commandments. 16And I will ask the Father, and he will give you another Advocate,e who will never leave you. 17He is the Holy Spirit, who leads into all truth. The world cannot receive him, because it isn’t looking for him and doesn’t recognize him. But you know him, because he lives with you now and later will be in you.f 18No, I will not abandon you as orphans—I will come to you. 19Soon the world will no longer see me, but you will see me. Since I live, you also will live. 20When I am raised to life again, you will know that I am in my Father, and you are in me, and I am in you. 21Those who accept my commandments and obey them are the ones who love me. And because they love me, my Father will love them. And I will love them and reveal myself to each of them.”
22Judas (not Judas Iscariot, but the other disciple with that name) said to him, “Lord, why are you going to reveal yourself only to us and not to the world at large?”
23 Jesus replied, “All who love me will do what I say. My Father will love them, and we will come and make our home with each of them. 24 Anyone who doesn’t love me will not obey me. And remember, my words are not my own. What I am telling you is from the Father who sent me. 25 I am telling you these things now while I am still with you. 26 But when the Father sends the Advocate as my representative—that is, the Holy Spirit—he will teach you everything and will remind you of everything I have told you.
27“I am leaving you with a gift—peace of mind and heart. And the peace I give is a gift the world cannot give. So don’t be troubled or afraid. 28Remember what I told you: I am going away, but I will come back to you again. If you really loved me, you would be happy that I am going to the Father, who is greater than I am. 29I have told you these things before they happen so that when they do happen, you will believe.
John chapter 14
The Holy Spirit is God.
I don’t know about you but this is one of the most comforting passages in the Bible. I love verse 18 where God talks to us like a comforting daddy.
God lives in us in the person of the Holy Spirit. We are never alone. We always have someone who cares about us in our midst. We always have our best friend close. The Father, Jesus and the Holy Spirit are one.
8Philip said, “Lord, show us the Father, and we will be satisfied.”
9Jesus replied, “Have I been with you all this time, Philip, and yet you still don’t know who I am? Anyone who has seen me has seen the Father! So why are you asking me to show him to you? 10Don’t you believe that I am in the Father and the Father is in me? The words I speak are not my own, but my Father who lives in me does his work through me. 11Just believe that I am in the Father and the Father is in me. Or at least believe because of the work you have seen me do.
The Father is God.
The mystery of the Trinity is something that has been discussed for millennium. The Holy Spirit is how God works in the world. The father is the loving God who cares for us with unconditional concern. The Son came to dwell with us and sacrifice himself for forgiveness of sin. It’s just one God so it’s not polytheistic. The Father chose us, the Son redeemed us and the Holy Spirit sealed us.
God in three persons blessed trinity!