I noticed some amazing words just today in Proverbs 3. Normally we turn to Proverbs 3:5-6 for inspiration and guidance--and rightfully so. I think it's a better reading to read through verse 8:
"Trust in the LORD with all your heart, and do not lean on your own understanding. In all your ways acknowledge him, and he will make straight your paths. Be not wise in your own eyes; fear the LORD, and turn away from evil. It will be healing to your flesh and refreshment to your bones."
Obviously that's good stuff. Now notice the very next two verses (9-10):
"Honor the LORD with your wealth and with the firstfruits of all your produce; then your barns will be filled with plenty, and your vats will be bursting with wine" (emphasis added, JS).
The key to financial "peace" or "security" is realizing "peace" and "security" can never come from money or things we can buy with it. Only the Lord is capable of truly comforting us in this life and the next (Phil. 4:4-7). He will only bless financially those who will bless Him (and therefore others, Mt. 25) with those same blessings. Obviously, this goes a lot further than the collection plate.