Positive commandment · Mitzvat Aseh #211 of 613
To fear one's father and mother
ליראה מאב ואם
The verse · Vayikra 19:3
אִישׁ אִמּוֹ וְאָבִיו תִּירָאוּ וְאֶת־שַׁבְּתֹתַי תִּשְׁמֹרוּ אֲנִי ה׳ אֱלֹהֵיכֶם
“You shall fear every man his mother, and his father, and keep my sabbaths: I am the Lord your God.”
The Rambam’s words
To fear one's father and mother, as [Leviticus 19:3] states: "A person must fear his mother and his father."
ליראה מאב ואם, שנאמר: "אִישׁ אִמּוֹ וְאָבִיו תִּירָאוּ" (ויקרא יט, ג).
Why · Sefer HaChinuch #212
Reverence of father and mother
“From the roots of this commandment is that it is fitting for a person to acknowledge and return kindness to people who were good to him, and not to be an ungrateful scoundrel, because that is a bad and repulsive attribute before G-d and people.”
Who & when
“And it is practiced in every place and at all times by males and females.”
Where in the Mishneh Torah
Hilchot Rebels הלכות ממרים