Below is the link to the forum where I found the text below. I think is a really cool interpretation of this passage.
http://www.reddit.com/r/TrueChristian/comments/391xn4/verse_of_the_week_deuteronomy_2929/
Deut. 29:29
""The secret things belong to the Lord our God, but the things that are revealed belong to us and to our children forever, that we may do all the words of this law." (ESV)
namer98 posted in response (from "the commentary of rashi"):
"The hidden things belong to the Lord, our God: Now, you might object [to God, saying]: “But what can we do? You punish the entire community because of the sinful thoughts of an individual, as Scripture says, ‘Perhaps there is among you a man…’ (verse 17 above), and after this, Scripture continues, ‘Seeing the plagues of that land [and the diseases with which the Lord struck it]’ (verse 21) [which seems to indicate that for the sinful thought of even one individual, the whole land would be struck down with plagues and diseases]. But surely no man can know the secret thoughts of his fellow [that we could somehow prevent this collective punishment!”
In answer to this, God says:] “I will not punish you for the hidden things!” [I.e.,] because “[The hidden things] belong to the Lord, our God,” and He will exact punishment upon that particular individual [who sins in secret]. However, “the revealed things apply to us and to our children” [that is, we are responsible for detecting the sins committed openly in our community, and] to eradicate any evil among us. And if we do not execute judgment upon these [open transgressions, over which we do have control,], then the whole community will be punished [because they would be remiss in their responsibility]. There is a dot placed over [each letter of] the words לָנוּ וּלְבָנֵינוּ here, to teach us homiletically that even for open sins [which were not brought to judgment, God] did not punish the whole community-until Israel crossed the Jordan. For then, they accepted upon themselves the oath at Mount Gerizim and Mount Ebal, and thereby [formally] became responsible for one another (Sanh. 43b). [When dots are placed over letters of the Torah, this denotes an exclusion of some sort. In our context, our Rabbis teach us that the exclusion refers to the period prior to the crossing of the Jordan.]"
