The Trinity is not three Gods in one person, but one God in three
persons: Father, Son and Holy Ghost
Truths regarding the relationship between the Father, the Son and
the Holy Spirit
The Father sent the Son
The Son sent the Spirit from the Father
The Spirit is not the Son, but they are both just like the Father
The Father sent the Son to you and the Son sent the Spirit to be
in you

Consider these verses: John 14:6-18, 26; 15:26; 16:12-16; 1 John

The Holy Ghost is the same as the Holy Spirit
Matthew 4 calls Him the Spirit while Luke 4 calls Him the
Holy Ghost
Consider these verses: Luke 4:1; John 1:33; 7:39; 14:26;
15:26; Luke 11:13