how about this - I do not care about Hebrews 3. yes, I said it, I mean it,
because Hebrews 3 is NOT a stand alone directive.
the Bible is to be taken as a whole. not chopped into pieces and theology be built around those pieces.
and, since Israel walked through a sea with walls of water on each side (or if was the reed sea, and the wall was 4 feet high, that is still impressive) and saw with there own eyes God's awesome presence descend on Sinai, yet STILL complained and doubted, that would indicate a lack of a strong inner belief.