How? The three Persons are ONE God..ONE in Being. Jesus (God) said.."He who sees me sees the Father." (God) And Jesus, "Breathed on them and said.."Receive the Holy Spirit.." (John20: 21-232) And John 1 says of Jesus.. "In the beginning was the Word (Jesus), and the Word was with God, and the Word (Jesus) was God. He was in the beginning with God. All things were made through Him, and without Him was not anything made that was made." (Jesus is one with the Creator God) Notice that both Genesis and John start with.."In the Beginning.." This is no coincidence! Because they are both talking about the same God and Creator. And Genesis alludes to the three Persons in the ONE God. "Then God said.. "Let US (1) make man in OUR (2) image and in OUR (3) likeness." Gen. 1:26