וִֽידַעְתֶּם֮ הַיּוֹם֒ כִּ֣י ׀ לֹ֣א אֶת־בְּנֵיכֶ֗ם אֲשֶׁ֤ר לֹֽא־יָדְעוּ֙ וַאֲשֶׁ֣ר לֹא־רָא֔וּ אֶת־מוּסַ֖ר יְהוָ֣ה אֱלֹהֵיכֶ֑ם אֶת־גָּדְל֕וֹ אֶת־יָדוֹ֙ הַחֲזָקָ֔ה וּזְרֹע֖וֹ הַנְּטוּיָֽה׃
And know ye this day; for I speak not with your children that have not known, and that have not seen the chastisement of the LORD your God, His greatness, His mighty hand, and His outstretched arm,
Read halakhic rulings (Jewish law) on Deuteronomy 11:2: and classical halakhic sources.