This word "name" is used to represent Yahweh's character. Alternate translation: "not disgrace God's reputation" or "not disgrace their God" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Here "bread" represents food in general. Yahweh does not actually eat these offerings. It is the sincerity of those offering the food that pleases God. (See: [[rc://en/ta/man/translate/figs-synecdoche]])