Psalm 147:4 there he explained that astronomers cannot be able to know all the starts by name but t Jesus being God is able.
On the part of God head , he explained that God the Father , God the son and Holy spirit are God head.
In my own addition , if in the beginning the word was with God and that the word is God , then it is right to say that Jesus Christ is God because he is the word that was made flesh.