This grace, which is always followed by its effect, is refused to us, as we said, only if we resist the Divine, auxilium praeveniens, sufficient grace, in which the efficacious help is already offered us, as fruit is in the flower. If we destroy the flower, we shall never see the fruit, which the influence of the sun and of the nourishment of the earth would have produced…We have elsewhere explained what St. Thomas and his best disciples teach about this mystery
From the article from the original post that seems to agree with the priest referenced in the original post.
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