From Fatima:
"Finally, devotion to the Immaculate Heart of Mary, our Most Holy Mother, consists in considering Her as the seat of mercy, of goodness and of pardon, and as the sure door of entering Heaven."
You show me where this is in the New Testament.
Which part of it? The title of Immaculate? Our Most Holy Mother? The intercession of the saints? The mediatrix of grace?
There's a lot there.