“Free from” here is an idiom for the ability to live without being controlled by something. AT: “Live in such a way that you are not controlled by a desire for money” (See: rc://en/ta/man/translate/figs-metaphor).
This is a quotation from the book of Psalms in the Old Testament. (See: rc://en/ta/man/translate/figs-explicit)
The author uses a question to emphasize that he does not fear people because God is helping him. Here “man” means any person in general. AT: “I will not fear what any person can do to me!” (See: rc://en/ta/man/translate/figs-rquestion and rc://en/ta/man/translate/figs-gendernotations)