It’s simple: God is a Spirit and that’s why He…
God is a Spirit and that’s why He is called the Holy Spirit because He has no sin.
Jesus Christ is the Word of God that became flesh to dwell among men. God created the world with His Word, meaning that Jesus Christ is the creator of the universe, because God’s power is in His Word.
In conclusion, The father, the Word and the Holy Spirit are the same person, but have two forms of manifestations; the Spirit and the flesh.