It is implied that they will forbid believers to marry. Alternate translation: "forbid believers to marry" (See: [[rc://en/ta/man/translate/figs-explicit]])
It is implied that they will forbid only certain foods. Alternate translation: "they will require believers to abstain from certain foods" or "they will not allow people to eat certain foods" (See: [[rc://en/ta/man/translate/figs-explicit]])