...”grace for overcoming sin in every particular was conferred upon her (mary)”......
That is a lie and comes from the Father of Lies...Only Jesus can forgive sins...he’s the one who paid the price...
I think you are misunderstanding this. God cannot be in an impure vessel without consuming it. Even Mary attributes her sinlessness to Her Son ...her Savior.
Look at all the early writings of the Fathers of the Church. They all believed the same thing. Even Martin Luther believed it. There is nothing about this belief that denies that Jesus paid the price for our sins on the cross. This is one of the reasons that we Catholics place Christ on the Cross in our church buildings....so that we NEVER forget what the cost was of our salvation.
Yeah just as SumProVita said, that quote from St Augustine isn’t saying Mary has the power to forgive sins. He (Augustine) is saying she was given a special grace to resist sin. In other words, the Immaculate Conception, which miraculously (through the power of God, via Jesus’ sacrifice on the cross) preserved her from Original Sin, which also preserved her from what we Catholics call “concupiscence”, which (in the Catholic sense) is a tendency to want to sin, or to resist holiness. (Not merely a tendency to commit sexual sins as the definition implies.).
So there is no blasphemy here per se. (Not in what St Augusinte really said.). Of course, others argue that the Immaculate Conception never happened at all, to which I will depart from this conversation.