Charles Kettering said, “When I was research head of General Motors and wanted a problem solved, I’d place a table outside the meeting room with a sign: “Leave slide rules here.” If I didn’t do that, I’d find some engineer reaching for his slide rule. Then he’d be on his feet saying, ‘Boss, you can’t do it.'”

Moses should have taken the “slide rules” away from the 12 spies in Numbers chapter 13. Sure enough, they measured the land and the size of the inhabitants and they came back with the same “slide rule” kind of report to the whole nation. They said, “We can’t do it.” They are argued that the greatness of the cities and the size of the people were too much for them.

According to the slide rule, bumble bees can’t fly because they’re not aerodynamically sound. But they don’t know that and they fly anyway. They just do what God made them to do regardless of the slide rule. I don’t know what task lies before you that your slide rule says can’t be done, but I’d remind you of God’s words to Moses in Numbers chapter 11 when Moses argued that the task of giving the entire nation meat to eat couldn’t be done. The dialogue with God went like this: But Moses said, “Here I am among six hundred thousand men on foot, and you say, ‘I will give them eat to eat for a whole month!  Would they have enough if flocks and herds were slaughtered for them? Would they have enough if all the fish in the sea were caught for them?” The LORD answered Moses, “Is the LORD’s arm too short? You will now see whether or not what I say will come true for you.” With God, all things are possible.