Philippians 4:7, 11-12

and the peace of God, which surpasses all understanding, will guard your hearts and minds through Christ Jesus.

Not that I speak in regard to need, for I have learned in whatever state I am, to be content: I know how to be abased, and I know how to abound. Everywhere and in all things I have learned both to be full and to be hungry, both to abound and to suffer need.