Well, I look at the parable of the 10 virgins.
5 had prepared, and 5 didn't. The ones who prepared got in.
I think that can also apply to some matters here on earth.
For example, we are self employed. Our sales tax is due every 3 months. Why are we saving up for that sales tax? That could go into Bibles!
Well, we have to assume that we will be here in 3 months. If we don't pay we will lose our business and suffer legal consequences.
Our mortgage and other bills are due every month, and we're going to keep paying them.
Same with property taxes - due in about 6 weeks. I could spend it all on cows for people in Africa, or I could save it up and assume we will need to pay it.
I believe we have to balance prudence with preparation.
Example: I have an expensive home repair that needs to be done. However, God has allowed us to work around it for the time being. I am trusting that either God will 1. provide means to pay for the repair when necessary 2. Allow us to keep working around the need or 3. Rapture us before we need to do it.
I figure God has my back, so I don't worry about it. But in the meantime I am certain God wants me to take care of my responsibilities.
We are all called to do different things. Right now, finances at home are pretty awful. I have prayed on getting another job; and I always get a NO. Doesn't seem logical, but it just makes us lean that more on Him.
If I'm taking care of my current needs, and God raptures me tonight, great. If not, at least my home won't get foreclosed and we'll still have the business.