Leviticus 19:26-28
Blood, Hair, and Body
19:26 “‘You must not eat anything with the blood still in it. You must not practice either divination or soothsaying.
19:27 You must not round off the corners of the hair on your head or ruin the corners of your beard.
19:28 You must not slash your body for a dead person or incise a tattoo on yourself. I am the Lord.