A study on Philippians 4:10-13. 

10 But I rejoiced in the Lord greatly that now at last your care for me has flourished again; though you surely did care, but you lacked opportunity. 11 Not that I speak in regard to need, for I have learned in whatever state I am, to be content: 12 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. 13 I can do all things through Christ who strengthens me.