9. In how many Persons does this one God exist?
God exists in three Persons: the Father, the Son, and the Holy Spirit.
After his baptism, as Jesus came up out of the water, the heavens were opened and he saw the Spirit of God descending like a dove and settling on him. And a voice from heaven said, “This is my dearly loved Son, who brings me great joy.”
-Matthew 3:16-17 NLT

“But I will send you the Advocate—the Spirit of truth. He will come to you from the Father and will testify all about me."
-John 15:26 NLT

"Therefore, go and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit."
-Matthew 28:19 NLT