When Dovid was given a sword and armor to fight the giant, Golyas, he refused, saying: כי לא נסיתי (שמואל א יז לט) and Rashi says that he wanted the simplest form of a weapon (a plain stone), since he wanted it to be an obvious miracle. Similarly, we have Yonasan ben Shaul stealing away from his father’s army camp, and deciding to defeat the Pelishtim all on his own, saying: כי אין לה' מעצור להושיע ברב או במעט (שמואל א יד ו) It makes no difference to Hashem if He saves us through a big army or just a few people.
Dovid and Yonasan both looked to do things: בדרך נס with open miracles. (And it’s interesting that Dovid had previously been given a Siman, when he killed a lion and a bear, and Yonasan also asked for a Siman first. He said that if the Pelishtim say to him: “Wait until we reach you”, then I won’t go. But if they say: “Come up to us”, then it’s a Siman that Hashem has given them in our hands).
Although these people were unusual in looking and expecting great Nissim, we too are surely expected to be more and more Ness oriented. When these people davened Shachris, which is loaded with Zecher L'yetzias Mitzrayim, it sunk into them; and we need to work on being the same. Like R' Shach Zatzal would quote the Rambam who says that he’d rather teach Emuna more than any other Limud (topic). Having Nissim in your life has to be your normal mentality.
