The distinction between institutional and non institutional Christianity, consists in the fact that, in the early Christian Church, the spiritual element was more present than the institutional one. It was a time when the institution was not there, it only started to be formed gradually. The Christians were persecuted and their communities were based on the direct guidance of the Holy Spirit, rather than on the exegesis of the written texts of the canonic Bible. There was a risk being Christian. I refer to the risk of martyrdom. During the apostles’ era, only people truly called by God came to God.
No man on earth can stop sinning as long as it is still motivated by his human nature. Why? This is because every man is a sinner in God's sight precisely because of his human nature. Sin dwells in us, in our genes, in our most profound structure. I don’t refer here to facts considered criminal or offensive by the society, which are also sins in God’s eyes because all this can be prevented by education. There are many citizens all over the world, who never performed any crimes or offenses, in their entire life.