If the woman is Mary then she did have other children????<quoted text>
The bible uses the word 'justification'. No passage uses the words justification and faith only EXCEPT when St. James says we are NOT justified by faith only. Debate over.
And you don't have any authority to declare who the woman is.
Later in Rev 12 we read... check this out Tony....
Rev 12:17 Then the dragon became furious with the woman and went off to make war on the rest of her offspring