Possible meanings are 1) "Do not allow people to speak vanity and lies to me" or 2) "Do not allow me to speak vanity and lies" (See: [[rc://en/ta/man/translate/figs-metaphor]])
The writer speaks as if "poverty" and "riches" were physical objects that someone could give to another. They are also abstract nouns that can be stated as "poor" and "rich." Alternate translation: "Do not allow me to be either very poor or very rich" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-abstractnouns]])