The relationship between the law and freedom can be expressed clearly. Here "freedom" probably refers to freedom from sin. Alternate translation: "the perfect law that gives freedom" or "the perfect law that makes those who follow it free" (See: [[rc://en/ta/man/translate/figs-explicit]])
This can be stated in active form. Alternate translation: "God will bless this man as he obeys the law" (See: [[rc://en/ta/man/translate/figs-activepassive]])