This idiom means he "firmly decided." Alternate translation: "I have made up my mind to oppose that man" (See: [[rc://en/ta/man/translate/figs-idiom]])
God's name represents God and his reputation. Alternate translation: "dishonor my reputation" or "dishonor me" (See: [[rc://en/ta/man/translate/figs-metonymy]] and [[rc://en/ta/man/translate/figs-metaphor]])