Does God allow sin?

Some Cannot Distinguish the Spirit 

I eventually focused into my mind the only desirable state is to be one with Jesus and the spirit as He has revealed, the Holy Spirit, all one with God the Father. 

Another time, when I was more or less watching my life go by like a movie, at a favorable moment for it, someone came to the door asking if he could explain to me about the Trinity. My curiosity about a subject I never gave much thought to allowed him in. When he finished, I thanked him for his presentation and said I'd never before thought the Trinity as so important and interesting. He, surprised, had argued the opposite, emphasizing that the word Trinity was not even in the entire Bible.

In that view is the admission he had no idea of the spirit at all, only of the flesh. Later I found John 17 revealed the Trinity in the spirit where we are all one with Jesus. The spirit is not bound by words which are merely signals better suited for the ideas of the flesh rather than the spirit. 

Eventually my belief grew around Jesus who is my first touchstone, the cornerstone so to speak, if that is correct for me to say. He became my Paraclete before God, verifying my accepting my sins, that I believed, were forgiven by Him on the Cross, as God had instructed. All this is required because God will not allow any sin whatever to be permitted in His presence. Sin enters by the freewill of anyone who decides to favor sin. God has nothing to do with it.