Jesus confronts the religious leaders by calling them back to the very heart of God's law regarding parents. It wasn't just a suggestion, but a life-and-death matter.
Jesus quotes the fifth commandment, "Honor your father and your mother" (Exodus 20:12), directly from God's own words. This wasn't a suggestion or a suggestion to be twisted by human rules; it was a divine mandate.
Divine Authority: The text emphasizes "For God commanded." This immediately elevates the instruction above any human tradition. It's God's voice, carrying His authority.
Severe Consequence: The accompanying penalty, "Whoever reviles father or mother must surely die," highlights the seriousness of this command. While the New Testament emphasis shifts to mercy and grace, Jesus uses this stark consequence to underscore the foundational importance of respecting parents in God's economy. It signifies that dishonoring parents is a profound offense against the created order and God's design.