'Mustache' in the Bible

"As for the diseased person who has the infection, his clothes must be torn, the hair of his head must be unbound, he must cover his mustache, and he must call out 'Unclean! Unclean!'

Now Mephibosheth, Saul's grandson, came down to meet the king. From the day the king had left until the day he safely returned, Mephibosheth had not cared for his feet nor trimmed his mustache nor washed his clothes.