King James Version
And it shall be upon Aaron to minister: and his sound shall be heard when he goeth in unto the holy place before the LORD, and when he cometh out, that he die not.English Standard Version
And it shall be on Aaron when he ministers, and its sound shall be heard when he goes into the Holy Place before the LORD, and when he comes out, so that he does not die.New International Version
Aaron must wear it when he ministers. The sound of the bells will be heard when he enters the Holy Place before the LORD and when he comes out, so that he will not die.