Michael Reeves give us a 1 minute introduction to the God who is Trinity in the first of nine short videos.
In John 20:31, John says he writes his gospel “so that you may believe that Jesus is the Christ, the Son of God and that by believing, you may have life in his name.” Now that call to believe in Jesus is a call to believe in a Triune God because Jesus is the Son of God. God is his father, and he’s the Christ, which means the anointed one—the one anointed with the Spirit. So the God that Jesus proclaims is a Father who has always loved his Son, as the Father has poured his Spirit out on him.
You get to see this in the baptism of Jesus. When Jesus is in the Jordan River, he hears the voice: “This is my beloved Son in whom I’m well pleased”—he hears that as the Spirit rests on him. So Jesus reveals to us a father, always loving his son, in the power of the Spirit. He reveals the God who is love.