Of course, we have no true understanding of these giants. Yet, we have a strong message never to be Nis'pael from all our sins and weaknesses; that Davka these: שִבְטֵי קָה holy Shevotim are actually the basis of our holy nation! Notice how Davka Bas Sheva, with whom Dovid HaMelech was Nichshal in the worst: חֵטְא sin of: אֵשֶׁת אִישׁ a married woman, becomes the basis of Malchus Bais Dovid with her son, Shlomo.
WARNING
This is all good: לְמַפְרֵעַ after the fact. LE’CHATCHILA, DON’T EVEN GET NEAR ANY: חֵטְא SIN: קַל אוֹ חָמוּר MINOR OR MAJOR. IT’S NOT WORTH IT! And these people didn’t really sin the way it looks like. They were Tzaddikei Yesod Olam!