In this weeks Parsha we learn of Noach’s teiva (ark). Noach takes his progeny with him onto the ark to seek a safe haven for them so they too will not be decimated by the tumultuous flood. Noach did not go on the ark as a measure of panic, but strictly because Hashem told him too.
Rav Weiss from Kfar Roeh writes that, on Shabbos we have a chiyuv to eat three meals. The first meal is on Friday night after a long week we are famished and looking forward to a delicious and warm meal. On Shabbos day as well, after a long Shacharis and Mussaf in Shul we are anxious to get home to fill our stomachs with the fine delicacies that have been prepared. The third meal however, is different from the previous two meals. It occurs shortly after the second meal when our stomachs are full of food. Nevertheless we still eat this meal because Hakadosh Baruch Hu tells us to. Therefore we don’t call this meal Shalosh Seudos to reflect that even though it appears that we ate the first two meals in order to satiate our own palates we infact ate them for the same reason why we ate the third meal, because Hakadosh Baruch Hu asked us to.
Just like Noach who could have used the teiva as a safe haven but instead enters it because Hashem tells us to. We eat our meals on Shabbos not only because we have delicious food but primarily because Hakadosh Baruch asks us to.