What does the Bible say about worrying about money?

"Therefore do not worry, saying, ‘What shall we eat?’ or ‘What shall we drink?’ or ‘What shall we wear?’ For the Gentiles strive after all these things, and your heavenly Father knows that you need them. But seek first the kingdom of God and His righteousness, and all these things will be added unto you."

Jesus names the exact worries: food, drink, clothes. Then He says your Father knows you need them. Seeking His kingdom first puts the worry in its place, without pretending the bills aren't real.

"And my God will supply all your needs according to His glorious riches in Christ Jesus."

Paul wrote this to a church that had given generously while poor themselves. God's supply is measured by His riches, not by your bank balance.

"Keep your lives free from the love of money and be content with what you have, for God has said: “Never will I leave you, never will I forsake you.”"

Contentment here rests on a promise, not a feeling: God will never leave you. Whatever the account shows, you aren't facing it alone.

"The plans of the diligent bring plenty, as surely as haste leads to poverty."

Diligent planning leads to plenty, and rushing leads to poverty. Making a plan is wisdom, not worry.

"Of course, godliness with contentment is great gain. For we brought nothing into the world, so we cannot carry anything out of it. But if we have food and clothing, we will be content with these."

Paul sets a simple floor: food and clothing are enough to be content. That frees you from chasing more just to feel safe.