Leviticus 19:27
"Ye shall not round the corners of your heads, neither shalt thou mar the corners of thy beard."

Leviticus 19:28
"Ye shall not make any cuttings in your flesh for the dead, nor imprint any marks upon you: I am the LORD."

Leviticus 21:1
"And the LORD said unto Moses: Speak unto the priests the sons of Aaron, and say unto them: There shall none defile himself for the dead among his people;"

Leviticus 21:4
"He shall not defile himself, being a chief man among his people, to profane himself."

Leviticus 21:5
"They shall not make baldness upon their head, neither shall they shave off the corners of their beard, nor make any cuttings in their flesh."