ancient society vs. modern society

I have often pondered on miracles like David slaying Goliath, so naturally, I apply such truths across the board to my life and diet struggles to my contemplation of ancient society, and it comes back to a thing someone said in an email once. They were advising me regarding parenting, without the aid of my spouse, because we were separated pending  a divorce, and what this friend said often returns as I contemplate things, and it came from the mouth of another to help me in my situation at the time. It was, "mother's who know do less."

First, I want to apply that to David and Goliath...meaning any seemingly u surmountable thing. Looking back it is obvious how little was actually us and more was the hand of providence, oh heck, I'll say it. It was God. There is a line in a movie that also sticks in my memory where a young Wilford Woodruff is contemplating the great miracles and prophets of the past (so I think it applies to David). Wilford says, "preacher says such miracles and such in that past are not necessary today because of our great faith." But, I have always been taught and believe 100% that miracles are a product of faith. And then Wilford continues, "I say, then give me those miracles and prophets, etc." Not sure of who says what, that is how I remember it: https://youtu.be/-ZcDr3JUSOs

My conclusion this morning is that in the past as well as our past we struggle to understand and it is like how a teen rebels and wants to do things on their own, and I think that is part of the trajectory here, but like teens. Men think that they "know it all" when the more we know the less we need to just believe and I think greater things were accomplished when we relied on faith than when we relied. Our own ability and Intelligence. Still, I think we are supposed to grow up and learn to do things for ourselves, but I suspect we will find how dismal our accomplishments will be when compared to those of past/ignorant civilizations.

I don't have the time to elaborate, but I wanted to mention that this is evidence that this "life" is merely a stepping stone.