Parents

אָר֕וּר מַקְלֶ֥ה אָבִ֖יו וְאִמּ֑וֹ וְאָמַ֥ר כׇּל־הָעָ֖ם אָמֵֽן׃ {ס}      

 Cursed be the one who insults father or mother.—And all the people shall say, Amen. 27:12

Interestingly, the word for insulting in Hebrew, here, comes from the root, קל, "lighthearted." One thus must not treat his parents lightheartedly, but rather with כובד ראש, or honor and respect. 

For example, one must not call his parent by his first name. Doing so, would be analogous to making light of one's parents. 

The curses and blessings in this parsha serve as a North Star or guide to the direction life must take upon the Jewish people's entrée into the land; forgetting the tradition of one's predecessors would be just that. 

It's important to remember in our Torah portion that the forefathers of those who entered the land were annihilated because of their perfidy. Yet, that notwithstanding, the command is all the more salient - and prescient - in light of the imperative placed upon the Jews conquering the land, to remember the sacrifice of their parents, something, we as a nation excel in and must continue to excel in given the erosion of the family structure so rampant in the Western world.