# this mystery was not revealed to me

This can be stated in active form. Alternate translation: "God did not reveal this mystery to me" (See: [[rc://en/ta/man/translate/figs-activepassive]])

# This mystery was revealed to me so that you

This can be stated in active form. Alternate translation: "He revealed the mystery to me so that you" (See: [[rc://en/ta/man/translate/figs-activepassive]])

# know the thoughts deep within you

This phrase is using the word "you" referring to the person's mind. Alternate translation: "know the thoughts deep inside your mind" (See: [[rc://en/ta/man/translate/figs-synecdoche]])