It turns out that there are two extremes to this night – on one hand, its power is great to be protected from harmful forces, but on the other hand, the danger is very great, requiring superior observance to uphold all its statutes and judgments. Only through this does the special and superior protection inherent in it apply. However, if one were to sin, heaven forbid (chas v'shalom), the intense sanctity would turn against him due to the severity of the sin and the jealousy of the harmful forces. [This is similar to what the Kli Yakar wrote, that the two protections mentioned in the verse here – the protection of the Holy One, blessed be He (HaKadosh Baruch Hu) from harmful forces, and the protection of Israel by observing the commandments – are both dependent and intertwined with each other, in the aspect of 'My candle is in your hand and your candle is in My hand – guard Mine and I will guard yours'. When Israel observes this night, dedicating it to Heaven, recounting the exodus, singing praises, fulfilling the commandments, and avoiding transgressions, then the Holy One, blessed be He, makes it a 'night of watching', protected from harmful forces.]