Matthew 3:16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him: 17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.
In these two verses we see all the Godhead. That is something we do not understand. One God but three Persons. Coexistent, Coequal, and not 3 manifestations of one person.
Jesus is being baptized. The Spirit of God descending like a dove and the voice of God from heaven. Though all 3 persons are mentioned there is but One God.
I do not understand so much about Him. I just accept it by faith. He said He is One. He says that there are three persons. I believe Him.
I really don’t try to explain it as much as I just state it!