The phrase "to pass through the fire" means to burn something with fire as a sacrifice. AT: "You must not burn your children alive" (See: [[rc://en/ta/man/translate/figs-idiom]])
Here the word "profane" means to dishonor. The word "name" represents God himself. AT: "you must not dishonor your God" (See: [[rc://en/ta/man/translate/figs-metonymy]])