Well, I did not see this posting till today. Geshmakenheistein, can you corrobarate your assertion that the “penuyos” in the time of the bais hamikdash were “tehoros”??? And , by the way, last time I looked, Dovid hamelech was before the bais hamikdosh. You have to show me a legitimate source that says that penuyos were toivel ,’commonly”, during that time.
I did not say that niddah is not an ervah- see my posting. The Torah does call her an ‘ervah”, although, as a matter of course, generally,only the family ‘aroyos” are called commonly ‘ervahs”.
kallah belo beracha has nothing to do with ervah. The term “keniddah’ is a talmudic device of emphasizing the severity of the transgression.
And lastly, I think that the lav of “Lo Tikrav’ (correct spelling) has to do with touching, kissing, etc…If my memory serves me right, yichud has nothing to do with ” “lo tikrav”.
I am pretty sure you had a good rebbe, the question is , did you quote him correctly?