The 4 Types of the Binitarian Heresy SIMPLIFIED

Be not carried about with divers and strange doctrines. 

Hebrews 13:9

The 4 Types of the Binitarian Heresy, in a Simplified Description, are:

1) Basic Binitarian View: That God the Father and God the Son are both Eternal and Divine. But that the Holy Spirit is God the Father's spiritual Prescence in the world acting upon the hearts of men--hence not a person or member of the Triune Godhead/Trinity.

2) Arian view which is that God the Father is Eternal and God the

Son, while Divine and God, is not Eternal but rather the first being God created---sort of like He created a co-God before He created anything else.

3) Semi-Arinaism is the same as above except that God the Son wasn't granted Divine status until He came down to represent the Father on earth and suffered and died on the cross. Divinity with the Father was His reward.
* Jehovah's Witnesses are semi-Arian with a twist. Although agreeing that Christ was made Divibe after the cross (or in their view the stake) they don't pray to Him as such yet. They believe the show down here is all God the Fathee Jehovah's and that Christ will be worshiped when the next world is created.

4) Socinianism, which agrees with the basic Binitarian view, except that they teach that Christ did not exist until He was implanted in Mary. In other words, Christ did not pre-exist until His birth.
*This view started with the Polich Brethren during the Reformation, today it is held by a tiny denomination known as the Christadelphians and their splinter groups: The Church of the Blessed Hope and the Church of God General Conference (Abrahamic faith).