What does the saying "Jehovah is my shepherd, and I will never want" mean?

Well, this is David's poem, which refers to two shortcomings, one is spiritual and the other is secular. First of all, we must understand that believing in God is not believing in the god of wealth, nor is it believing in sending Guanyin to children. Our ultimate goal is not to be promoted and get rich, but to be blessed by the kingdom of God. But our faith also needs material things, which does not mean that people who believe in God can not eat them. ...