Here the word "spirit" is a synecdoche for the whole person. Alternate translation: "a trustworthy person" (See: [[rc://en/ta/man/jit/figs-synecdoche]])
"Covered" represents keeping things concealed as much as possible. Alternate translation: "does not tell" or "does not speak about the matter" (See: [[rc://en/ta/man/jit/figs-metaphor]])