In a full apocalypse, nothing but teamwork, grit, secure shelter, and hard farming will save ya. Mass storage (hoarding) can get you by for a time. Prepping seems these days to go hand in hand with hoarding. I don't think anything could be LESS biblical.
However, wars and rumors of wars being as they are, and history being what it is, hard times can hit at any moment! No believer is self sufficient economically, we as a church are to share in all things. What can you keep on hand that will keep its value for trade or bartering in case of emergency?
Here is my top five list of things to have on hand in the case of hard times. Also, you could make a plan to quickly get these things in the early hours of the emergency. But make sure it's something you can fit in one shopping cart
Silver coins (100 ounces)
Ammunition (500 round rifle, 250 rounds pistol)
Cash ($1000-$2000)
Wine (40 bottles, red)
Gasoline (1 barrel)
Don't save the gas it will go bad and mess up whatever you use it in, it is not that hard to build a gassifer and it can be done fairly quickly with fairly common supplies and will give you a lot more mileage than a tank of gas, you can also rather easily pyrolize plastic and crack the hydrocarbon chains and end up with a passable petrol solution as well as diesel and a bevy of other petroleum distalites including some very handy and long burning paraffin wax. If you so save gas rotate it every couple of weeks.
What are your top five?