“But when the Helper comes, whom I will send to you from the Father, the Spirit of truth who proceeds from the Father, he will bear witness about me.”-John 15:26
What precisely is the role of the Spirit? For one, he is a helper. With the Spirit’s help, we are not left blindly interpreting Scriptures or relying only upon fallible teachers. Under the new covenant, we have a guide who leads us into truth.
Jesus also said that the Spirit bears witness about him. In other words, a second role that the Spirit plays is to bring Jesus to mind, to point us to him. By the Spirit, we do not have to stumble about on our own.
John 15:26 is also a Trinitarian verse. Notice all three members’ presence: Father, Son, and Spirit. Jesus sends the Spirit from the Father, who will in turn tell about him. This is Trinitarian flow. This is perichoresis.
Jesus, thank you for showing me the Trinity and for sending your Spirit to testify about you. Teach me to dance with you in your perichoretic flow. Amen.