Proverbs has a lot to say about wisdom (being wisdom literature after all), and it also has a number of things to say about finances. Lately, two passages have stuck out to me which I feel many forget about and/or don't apply when it comes to their functional way of "stewarding" the monetary resources God has given them. The first passage is from Proverbs 3:21-28:
 My son, do not lose sight of these—
keep sound wisdom and discretion,
 and they will be life for your soul
and adornment for your neck.
 Then you will walk on your way securely,
and your foot will not stumble.
 If you lie down, you will not be afraid;
when you lie down, your sleep will be sweet.
 Do not be afraid of sudden terror
or of the ruin of the wicked, when it comes,
 for the LORD will be your confidence
and will keep your foot from being caught.
 Do not withhold good from those to whom it is due,
when it is in your power to do it.
 Do not say to your neighbor, “Go, and come again,
tomorrow I will give it”—when you have it with you.
(Proverbs 3:21-28 ESV)