While the Bible clearly shows Jesus to be the eternal Son of the Father, he is also the only human with a biological mother who can claim God as His father. Even Adam, who is called the Son of God in Luke 3:38
For example in John 1:1 speaking of Jesus, the disciple wrote, “In the beginning was the Word, and the Word was with God, and the Word was God.” And inGenesis 1:2 the Spirit of God was hovering over the waters at the same time.
In John 10:30 Jesus said that He and the Father are one. Yet He often went away alone to pray to the Father, and did His miracles through the Holy Spirit. Some say that on the cross when Jesus cried, “My God, My God, Why have you forsaken me?” He was speaking to the other two.
When He left the Earth the Holy Spirit came to dwell in us, and yet we’re told that all three dwell in us. In 1 Cor. 3:16 we’re called God’s Temple. In 1 Cor 6:15 Paul said that our bodies are the members of Christ Himself, and in John 17:32 Jesus claims to be in us. In 1 Cor. 6:19 we’re called the Temple of the Holy Spirit, and Ephes. 1:13-14 says that the Holy Spirit is sealed within us.
After the Rapture we’ll understand, but for now we just have to believe.