Here "bread" represents food in general. God did not actually eat the sacrifices. Priests would offer the sacrifice on God's altar, and they would eat some of the meat. AT: "must not present an animal as a food offering to your God" (See: [[rc://en/ta/man/translate/figs-synecdoche]])
The word "hand" represents the whole person. It is implied that Israelites could not use animals as a sacrifice to God if they bought it from a foreigner, because foreigners castrated their animals making them unacceptable to God. AT: "that a foreigner has given you, because they castrate their animals" (See: [[rc://en/ta/man/translate/figs-synecdoche]] and [[rc://en/ta/man/translate/figs-explicit]])