'Pig's' in the Bible

Like a gold ring in a pig's snout is a beautiful woman without discretion.

"Whoever slaughters an ox is just like one who kills a human being; whoever sacrifices a lamb is just like one who breaks a dog's neck; whoever makes a grain offering is just like one who offers pig's blood; and whoever makes a memorial offering of frankincense is just like one who blesses an idol. Yes, these have chosen their own ways, and they take delight in their contaminated actions.