Exodus 28:35
Book: Exodus 28
And it shall be upon Aaron to minister: and the sound thereof shall be heard when he goeth in unto the holy place before Jehovah, and when he cometh out, that he die not.
Numbers 4:37
Book: Numbers 4
These are they that were numbered of the families of the Kohathites, all that did serve in the tent of meeting, whom Moses and Aaron numbered according to the commandment of Jehovah by Moses.