Trinity, is the son of GOD, GOD himself/itself? I understand that Jesus is son of GOD. The scripture is clear on that one. Jesus did lots of things that only GOD can do. We revered Jesus as God (not all caps).
But is he also GOD, the father (all caps)?
The confusion lies in that Jesus is God however God consists of Father, Son, and Spirit.  There is a distinction and a unity. 

Here is a small subset of some of the verses that help us understand


  In the beginning was the Word, and the Word was with God, and the Word
  was God.John 1:1
  
  But of the Son he says, “Your throne, O God, is forever and ever, the scepter of uprightness is the scepter of your kingdom. Hebrews 1:8 
  
  Pay careful attention to yourselves and to all
  the flock, in which the Holy Spirit has made you overseers, to care
  for the church of God, which he obtained with his own blood. Acts
  20:28 ESV 
  
  For to us a child is born, to us a son is given; and the
  government shall be upon his shoulder, and his name shall be called
  Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.
  ISA 9:6