I rejoiced greatly in the Lord that at last you renewed your concern for me. Indeed, you were concerned, but you had no opportunity to show it.
I am not saying this because I am in need, for I have learned to be content whatever the circumstances. I know what it is to be in need, and I know what it is to have plenty. I have learned the secret of being content in any and every situation, whether well fed or hungry, whether living in plenty or in want. (Phil 4:10-12, NIV)

We can trust that God will always meet our needs. Whatever we need on earth he will always supply, even if it is the courage to face death as Paul did. Whatever we need in heaven he will supply. We must remember, however, the difference between our wants and our needs. Most people want to feel good and avoid discomfort or pain. We may not get all that we want. By trusting in Christ, our attitudes and appetites can change from wanting everything to accepting his provision and power to live for him.
In every generation and in every land the true foundation for character building has been the same–the principles contained in the word of God. The only safe and sure rule is to do what God says.
“The statutes of the Lord are right,” and “he that does these things shall never be moved.” Psalms 19:8; Psalms 15:5.
It was with the word of God that the apostles met the false theories of their day, saying, “Other foundation can no man lay than that is laid.” 1 Cor 3:11. {AA 475.2}