[P-Marlowe]

Another fallacy of the argument from silence.

Hardly. The word "until" is not silence. The logical implication is that Jospeh did know Mary after the birth of Jesus.

Now are there any scriptures which categorically deny that Joseph and Mary ever consummated their marriage?

No.

Thank you.

[adiaireton8]

The word "until" is not silence. The logical implication is that Jospeh did know Mary after the birth of Jesus.

A "word" is not silence, but an ambiguity is. The word in Greek [hews] translated as 'until' in Matt 1:25 can mean (1) up to but not excluding continuation of the action or (2) up to but not after. There is no way to tell (from the context of 1:26) which of these two senses is meant. But using the absence of a specification that removes an ambiguity as evidence for one or the other disambiguation is an argument from silence, and thus is a fallacy.

-A8