“Economics is the study of the use of scarce resources which have alternative uses.”
That is how Lionel Robbins, a British economist, defines economics. Economics tries to find the most efficient way to use the available resources before they run out.
Stuff running out is the result of sin. Economics is the study of sin’s effects upon a dying world.
In the Garden of Eden there was no economy because there was no scarcity. Want more stuff? Go get it! Economics began when sin entered.
Israel in the Wilderness had some problems, yet God always promised provision. Manna from heaven and quails appeared in abundant supply. All you had to do was listen to God and more would come. Israel defied economics.
Are believers today bound by economics? I suppose it depends on how you interpret verses like Ephesians 3:20; Matthew 6:25-34; 1 Timothy 6:17.