Did the Valar know there were still Faithful Númenóreans left on Númenor late Second Age?

Question

I've been pondering this, and I wonder if they distinguished faithful and non-faithful during the Ar-Pharazôn incident.

Answer 1

Yes. From "The Akallabêth":

... by grace of the Valar Elendil and his sons and their people were spared from the ruin of that day.