In Epistolam D. Pauli Apostoli ad Galatas notae

all this you perceive in the Sacraments as if in visible words, as if with your eyes. In the Eucharistic bread, representing the body of Christ delivered to death, you see, as if with your eyes, the body of Christ broken for you, that your sins were abolished in him, that he rose free from your sins, that the same person appears before the Father for you, in whom your sins have been expiated forever, and that you are united to him through the Holy Spirit: and thus he is the eternal food for you. For the Sacraments were not instituted so that those works might purge from sins: otherwise Christ would have died in vain, but that they might be testimonies and seals of that justice which faith possesses in the death of Christ alone. Romans 4.

This doctrine is necessary, because many will fall away. And Christ says: Do you think the Son of Man will find faith on the earth? Now, therefore, let us speak about certainty.

If I or an Angel from heaven, etc.

So immutable is the truth of the Gospel which is comprised in the articles of faith that even I, Paul, or an Angel must be cursed if he announces another Gospel. That is to say: Do not care for learned disputations, or any respect of persons, or the authority of men. For the articles of faith, or the Gospel, is above the Angels in heaven. The cause of certainty is the immutable truth of God. original: "Es muss ein fest wort sein" It must be a firm word. Heaven and earth will pass away, but my words will not pass away. Likewise: As far as the heaven is from the earth, so far are my thoughts from yours.

Thus: If even an Angel had come to Eve to call into doubt the word of the Lord, he would have had to be considered accursed to her.