According to Shatapatha Brahmana, Brahma conceives a passion for his own daughter but the gods condemn Brahma, even the goddess goes away from Brahma.
Prajāpati conceived a passion for his own daughter,--either the Sky or the Dawn. 'May I pair with her!' thus (thinking) he united with her.
This, assuredly, was a sin in the eyes of the gods. 'He who acts thus towards his own daughter, our sister, [commits a sin],' they thought.
The gods then said to this god who rules over the beasts (Rudra), 'This one, surely, commits a sin who acts thus towards his own daughter, our sister. Pierce him!' Rudra, taking aim, pierced him. Half of his seed fell to the ground. And thus it came to pass.
When the gods and goddess herself were against Brahma and his lust then how did Saraswati end up as a wife of Brahma? Is there some explanation in any Veda Purana? Why is there this discrepancy in this story, it is akin to a deer which runs away from hunter but then comes back to get killed under the hands of that very same hunter. This story doesn't make sense.
Also do Vedas really say that Saraswati is married "wife" of Brahma? Which Veda says that?
Is she married wife or consort/companion as some other people say? How can gods allow such sin when they were against it the first time?
What is their actual relation? The dharam shastras place very harsh punishment for incest then how did Brahma get away with this sin?
How can people even accept that saraswati is wife of his own father?