https://www.youtube.com/watch?v=vyN_S8byRRQ
WIth reference to what he calls the “drive train” of doctrines essential to salvation, MacArthur says:
Wow! That’s just awful.“John MacArthur” wrote: God - the nature of God. The writer of Hebrews says he that comes to him must believe that “He Is”. In other words, you come to God only when you come to the god who is God. So, you have to have what is called “theology proper,” which is the study of the nature of God…. The second very essential cardinal category of truth.
So, for example, if you deny the Trinity, you have invented a God who is “One.” That is not the true God. You are calling him God, but you are worshipping Satan or you’re worshipping Demons. False gods are concoctions of the kingdom of darkness. So, you have to come to the true God, who is Father, Son and Holy Spirit. One in nature, 3 in persons. The God who is revealed in scripture.