"For where two or three are gathered together in my name there am I in the midst of them."(Matthew 18:20)
How else did Peter know Simon's heart in this passage? "When Simon saw that the Spirit was conferred by the laying on of the apostles' hands, he offered them money and said, upon whom I lay my hands may receive the holy Spirit. But Peter said to him, "May your money perish with you, because you thought that you could buy the gift of God with money. You have no share or lot in this matter, for your heart is not upright before God...For I see that you are filled with bitter gall and are in the bonds of iniquity".
So your not proving your righteousness to me by saying that you pray in a closet? You cannot prove your own righeousness to God since it comes from God. You seem righteous for the most part, but you are quite bitter on these forums.
No, Jesus is saying to avoid all distractions when praying, and not to pray in order to be self-righteous.
No, not thousands of private religions, but one united underneath the church. Praying in a group is not in error because the collective group is praying. How could one prove that he is more righteous than the other when we are all saying our prayer as one voice at the same time? There is short period of time for private prayer during the mass, but we say this in private without speaking. So prayer itself is never in competition during mass.
It says also,107.4] "So woe to the praying ones, Who are unmindful of their prayers,Who do (good) to be seen".
Having no objection to it is indifference.