It is hard for people to understand that God is three in one. He is the Father, Son and Holy Spirit. Reading God’s word will help you understand the different roles that are clearly defined in scripture. Here are some scriptures that will help you better understand the trinity.
Isaiah 48:16Matthew 3:16-17
Matthew 28:18-20
Luke 3:21-22
John 14:26, 16:13-15
2 Corinthians 13:14
Galatians 4:6
Ephesians 2:18, 4:4-6, 5:18-20
1 Peter 1:2
1 John 5:7