This can be stated in active form. Alternate translation: "Christ made me, Paul, a preacher and an apostle" (See: [[rc://en/ta/man/translate/figs-activepassive]])
"I teach the Gentiles the message of faith and truth." Here, Paul may be using "faith" and truth" to express one idea. Alternate translation: "I teach the Gentiles about the true faith" (See: [[rc://en/ta/man/translate/figs-hendiadys]])