I should drive my statements more correctly by saying... that man and woman do not directly dispense grace by themselves, it is only through ministry of God, Christ, and the Holy Spirit which dispenses grace through the believer, such as those in Romans 1:11, 2 Corinthians 8:19, Ephesians 3:2, 4:29, 1 Peter 4:18, etc.
And this grace of God is according to the scriptures. No where in scripture does God delegate His dispensing of His grace to some particular person; it is dispensed only through God, Christ, and the Holy Spirit unto believing men and women; and not through Mary in particular, according to scripture. I have read too many Catholic dogma that says that Mary is the mediator of God’s grace. No scripture supports that.
My driving point must be to say that the Mary of the Catholic Church, is not the dispensing medium or mediator of God’s grace, per se. It is established in the scriptures, which you rightly quoted, that all believing men and women equally offer grace to each other for edification unto the Body of Christ, and thus by the means of Christ as the only mediator to dispense His grace towards us ward, e.g., which would be all true believers.
Good for them. She is all that. Try joining them rather than disrupting their prayers.
No where in scripture does God delegate His dispensing of His grace to some particular person
True. Nor do the Catholics believe that Mary is the only dispensor of grace. Every saint is a mediator of grace and not Mary alone. This is why we pray to all saints.
all believing men and women equally offer grace to each other
No, the scripture does not say "equally", and the Church does not teach that. The ability of one in a state of sin, or a Protestant heretic is reduced to nil, for example, because of their depraved actions.
all true believers
Speaking of that, what compelled you to make your ignorant posts on a thread about a papal encyclical, which dealt with the social teaching of the Catholic Church in the face of rising Fascism and Communism, and not at all with veneration of Mary? If you have questions about Mary or any other saint, find a suitable thread or start your own and flag me. I'd be happy to explain what the Church teaches as best I can. I usually don't dispappoint such requests.